- 12 6月, 2018 4 次提交
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由 Mark Cave-Ayland 提交于
Commit 72d3d8f0 "hw/isa/superio: Add a keyboard/mouse controller (8042)" added an 8042 keyboard device to the PC87312 superio device to replace that being used by the prep machine. Unfortunately this commit didn't do the same for the 40p machine which broke the keyboard by registering two 8042 keyboard devices at the same address. Resolve this by similarly removing the 8042 keyboard from the 40p machine as done for the prep machine in commit 72d3d8f0. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NHervé Poussineau <hpoussin@reactos.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Mark Cave-Ayland 提交于
The Linux sandalfoot zImage has an initialisation process which resets the VGA controller by setting all the BAR addresses to zero to access the VGA ioports at their legacy addresses. Unfortunately setting the framebuffer BAR to address 0 makes the framebuffer memory overlap the internal VGA memory causing accesses to fail, and so prevents the kernel from switching successfully to text mode. Since OpenHackWare configures the framebuffer BAR address outside of the legacy VGA internal memory space, remove pci_allow_0_address from the 40p machine class which causes the BAR reprogramming to zero to fail and so the VGA internal memory can be accessed correctly again. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Philippe Mathieu-Daudé 提交于
Use error_report() + abort() instead of error_setg(&error_abort), as suggested by the "qapi/error.h" documentation: Please don't error_setg(&error_fatal, ...), use error_report() and exit(), because that's more obvious. Likewise, don't error_setg(&error_abort, ...), use assert(). Use abort() instead of the suggested assert() because the error message already got displayed. Suggested-by: NEric Blake <eblake@redhat.com> Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NEric Auger <eric.auger@redhat.com> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 BALATON Zoltan 提交于
Signed-off-by: NBALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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- 08 6月, 2018 1 次提交
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由 Philippe Mathieu-Daudé 提交于
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Message-id: 20180606152128.449-5-f4bug@amsat.org Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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- 02 6月, 2018 1 次提交
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由 Michael S. Tsirkin 提交于
When pulling in headers that are in the same directory as the C file (as opposed to one in include/), we should use its relative path, without a directory. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
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- 01 6月, 2018 2 次提交
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由 Philippe Mathieu-Daudé 提交于
The header "hw/boards.h" already includes "sysemu/blockdev.h". Code change produced with: $ git grep '#include "sysemu/blockdev.h"' hw | \ cut -d: -f-1 | \ xargs fgrep -l '#include "hw/boards.h"' | \ xargs sed -i.bak '/#include "sysemu\/blockdev.h"/d' Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180528232719.4721-14-f4bug@amsat.org> Acked-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Philippe Mathieu-Daudé 提交于
Remove those unneeded includes to speed up the compilation process a little bit. (Continue 7eceff5b cleanup) Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180528232719.4721-13-f4bug@amsat.org> Acked-by: NMichael S. Tsirkin <mst@redhat.com> Acked-by: NCornelia Huck <cohuck@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 29 5月, 2018 1 次提交
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由 Peter Maydell 提交于
Rename the 2.13 machines to match the number we're going to use for the next release. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NCornelia Huck <cohuck@redhat.com> Reviewed-by: NThomas Huth <thuth@redhat.com> Reviewed-by: NGreg Kurz <groug@kaod.org> Message-id: 20180522104000.9044-5-peter.maydell@linaro.org
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- 20 5月, 2018 1 次提交
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由 Laurent Vivier 提交于
Re-run Coccinelle script scripts/coccinelle/return_directly.cocci Signed-off-by: NLaurent Vivier <lvivier@redhat.com> ppc part Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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- 11 5月, 2018 2 次提交
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由 Igor Mammedov 提交于
Suggested-by: NEduardo Habkost <ehabkost@redhat.com> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 1525691524-32265-5-git-send-email-imammedo@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Igor Mammedov 提交于
platform-bus were using machine_done notifier to get and map (assign irq/mmio resources) dynamically added sysbus devices after all '-device' options had been processed. That however creates non obvious dependencies on ordering of machine_done notifiers and requires carefull line juggling to keep it working. For example see comment above create_platform_bus() and 'straitforward' arm_load_kernel() had to converted to machine_done notifier and that lead to yet another machine_done notifier to keep it working arm_register_platform_bus_fdt_creator(). Instead of hiding resource assignment in platform-bus-device to magically initialize sysbus devices, use device plug callback and assign resources explicitly at board level at the moment each -device option is being processed. That adds a bunch of machine declaration boiler plate to e500plat board, similar to ARM/x86 but gets rid of hidden machine_done notifier and would allow to remove the dependent notifiers in ARM code simplifying it and making code flow easier to follow. Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Message-id: 1525691524-32265-3-git-send-email-imammedo@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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- 08 5月, 2018 1 次提交
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由 Greg Kurz 提交于
qemu-system-ppc fails to build with GCC 8.0.1: /home/hsp/src/qemu-master/hw/ppc/e500.c: In function ‘ppce500_load_device_tree’: /home/hsp/src/qemu-master/hw/ppc/e500.c:442:37: error: ‘/pic@’ directive output may be truncated writing 5 bytes into a region of size between 1 and 128 [-Werror=format-truncation=] snprintf(mpic, sizeof(mpic), "%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET); ^~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 11 and 138 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/hsp/src/qemu-master/hw/ppc/e500.c:470:39: error: ‘/global-utilities@’ directive output may be truncated writing 18 bytes into a region of size between 1 and 128 [-Werror=format-truncation=] snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc, ^~~~~~~~~~~~~~~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 24 and 151 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/hsp/src/qemu-master/hw/ppc/e500.c:477:36: error: ‘/msi@’ directive output may be truncated writing 5 bytes into a region of size between 0 and 127 [-Werror=format-truncation=] snprintf(msi, sizeof(msi), "/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET); ^~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 12 and 139 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by converting e500 to use g_strdup_printf()+g_free() instead of snprintf(). This is done globally, even for call sites that don't break build, since this is the preferred practice in QEMU. Reported-by: NHoward Spoelstra <hsp.cat7@gmail.com> Signed-off-by: NGreg Kurz <groug@kaod.org> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NEric Blake <eblake@redhat.com> Message-id: 152568372989.443627.900708381919207053.stgit@bahia.lan Cc: qemu-stable@nongnu.org Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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- 07 5月, 2018 6 次提交
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由 David Hildenbrand 提交于
Let's make it clear at relevant places that we are dealing with device memory. That it can be used for memory hotplug is just a special case. Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-11-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> [ehabkost: rebased series, solved conflicts at spapr.c] Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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由 David Hildenbrand 提交于
Rename it to better match the new terminology. Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-9-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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由 David Hildenbrand 提交于
We use the machine internally either way, so let's just pass it in then. Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-5-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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由 David Hildenbrand 提交于
We can just query it ourselves. When unplugging, we should always be able to the region (as it was previously plugged). E.g. PPC already assumed that and used &error_abort. Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-4-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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由 David Hildenbrand 提交于
Let's allow to query the MemoryHotplugState directly from the machine. If the pointer is NULL, the machine does not support memory devices. If the pointer is !NULL, the machine supports memory devices and the data structure contains information about the applicable physical guest address space region. This allows us to generically detect if a certain machine has support for memory devices, and to generically manage it (find free address range, plug/unplug a memory region). We will rename "MemoryHotplugState" to something more meaningful ("DeviceMemory") after we completed factoring out the pc-dimm code into MemoryDevice code. Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-3-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> [ehabkost: rebased series, solved conflicts at spapr.c] [ehabkost: squashed fix to use g_malloc0()] Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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由 David Hildenbrand 提交于
On the qmp level, we already have the concept of memory devices: "query-memory-devices" Right now, we only support NVDIMM and PCDIMM. We want to map other devices later into the address space of the guest. Such device could e.g. be virtio devices. These devices will have a guest memory range assigned but won't be exposed via e.g. ACPI. We want to make them look like memory device, but not glued to pc-dimm. Especially, it will not always be possible to have TYPE_PC_DIMM as a parent class (e.g. virtio devices). Let's use an interface instead. As a first part, convert handling of - qmp_pc_dimm_device_list - get_plugged_memory_size to our new model. plug/unplug stuff etc. will follow later. A memory device will have to provide the following functions: - get_addr(): Necessary, as the property "addr" can e.g. not be used for virtio devices (already defined). - get_plugged_size(): The amount this device offers to the guest as of now. - get_region_size(): Because this can later on be bigger than the plugged size. - fill_device_info(): Fill MemoryDeviceInfo, e.g. for qmp. Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20180423165126.15441-2-david@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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- 04 5月, 2018 14 次提交
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由 Marc-André Lureau 提交于
Now that we can safely call QOBJECT() on QObject * as well as its subtypes, we can have macros qobject_ref() / qobject_unref() that work everywhere instead of having to use QINCREF() / QDECREF() for QObject and qobject_incref() / qobject_decref() for its subtypes. The replacement is mechanical, except I broke a long line, and added a cast in monitor_qmp_cleanup_req_queue_locked(). Unlike qobject_decref(), qobject_unref() doesn't accept void *. Note that the new macros evaluate their argument exactly once, thus no need to shout them. Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com> Reviewed-by: NMarkus Armbruster <armbru@redhat.com> [Rebased, semantic conflict resolved, commit message improved] Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
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由 Greg Kurz 提交于
On a POWER9 host, if a guest runs in pre POWER9 compat mode, it necessarily uses the hash MMU mode. In this case, we shouldn't advertise radix GTSE in the ibm,arch-vec-5-platform-support DT property as the current code does. The first reason is that it doesn't make sense, and the second one is that causes the CAS-negotiated options subsection to be migrated. This breaks backward migration to QEMU 2.7 and older versions on POWER8 hosts: qemu-system-ppc64: error while loading state for instance 0x0 of device 'spapr' qemu-system-ppc64: load of migration failed: No such file or directory This patch hence initialize CPUs a bit earlier so that we can check the requested compat mode, and don't set OV5_MMU_RADIX_GTSE for power8 and older. Signed-off-by: NGreg Kurz <groug@kaod.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Greg Kurz 提交于
a324d6f1 "spapr: Support ibm,dynamic-memory-v2 property" added a new feature in the set of CAS-negotiatable options. This causes the CAS-negotiated options subsection to be migrated, even for old machine types that don't know about it, and breaks backward migration to QEMU 2.7 and older versions: qemu-system-ppc64: error while loading state for instance 0x0 of device 'spapr' qemu-system-ppc64: load of migration failed: No such file or directory Since this feature only affects boot time behaviour, it should be filtered out when we decide to migrate CAS-negotiated options, like we already do with OV5_FORM1_AFFINITY and OV5_DRCONF_MEMORY. Signed-off-by: NGreg Kurz <groug@kaod.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Mark Cave-Ayland 提交于
Since the macio device has a link to the PIC device, we can now wire up the IRQs directly via qdev GPIOs rather than having to use an intermediate array. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Mark Cave-Ayland 提交于
Introduce constants for the pre-defined New World IRQs to help keep things readable. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Mark Cave-Ayland 提交于
Commit 4e46dcdb "PPC: Newworld: Add uninorth token register" added a TODO which was to convert the uninorth registers hack to a proper device. Move these registers to a new uninorth device, removing the old hacks from mac_newworld.c. Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 David Gibson 提交于
To prevent spurious wakeups on cpus that are supposed to be disabled, we need to clear the LPCR bits which control certain wakeup events. spapr_cpu_reset() has separate cases here for boot and non-boot (initially inactive) cpus. rtas_start_cpu() then turns the LPCR bits on when the non-boot cpus are activated. But explicit checks against first_cpu are not how we usually do things: instead spapr_cpu_reset() generally sets things up for non-boot (inactive) cpus, then spapr_machine_reset() and/or rtas_start_cpu() override as necessary. So, do that instead. Because the LPCR activation is identical for boot cpus and non-boot cpus just activated with rtas_start_cpu() we can put the code common in spapr_cpu_set_entry_state(). Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org>
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由 David Gibson 提交于
cpu_ppc_set_papr() does several things: 1) it sets up the virtual hypervisor interface 2) it prevents the cpu from ever entering hypervisor mode 3) it tells KVM that we're emulating a cpu in PAPR mode and 4) it configures the LPCR and AMOR (hypervisor privileged registers) so that TCG will behave correctly for PAPR guests, without attempting to emulate the cpu in hypervisor mode (1) & (2) make sense for any virtual hypervisor (if another one ever exists). (3) belongs more properly in the machine type specific to a PAPR guest, so move it to spapr_cpu_init(). While we're at it, remove an ugly test on kvm_enabled() by making kvmppc_set_papr() a safe no-op on non-KVM. (4) also belongs more properly in the machine type specific code. (4) is done by mangling the default values of the SPRs, so that they will be set correctly at reset time. Manipulating usually-static parameters of the cpu model like this is kind of ugly, especially since the values used really have more to do with the platform than the cpu. The spapr code already has places for PAPR specific initializations of register state in spapr_cpu_reset(), so move this handling there. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org>
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由 David Gibson 提交于
In cpu_ppc_set_papr() the UPRT and GTSE bits of the LPCR default value are initialized based on on ppc64_radix_guest(). Which seems reasonable, except that ppc64_radix_guest() is based on spapr->patb_entry which is only set up in spapr_machine_reset, called _after_ cpu_ppc_set_papr() for boot cpus. Well, and the fact that modifying the SPR default value for an instance rather than a class is kind of yucky. The initialization here is really only necessary or valid for hotplugged cpus; the base cpu initialization already sets a value that's good enough for the boot cpus until the guest uses an hcall to configure it's preferred MMU mode. So, move this initialization to the rtas_start_cpu() path, at which point ppc64_radix_guest() will have a sensible value, to make sure secondary cpus come up in an MMU mode matching the existing cpus. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org>
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由 David Gibson 提交于
There are several places in spapr_hcall.c where we need to update the LPCR value on all CPUs. We do this with the set_spr() helper. That's not really correct because this directly sets the SPR value, without going through the ppc_store_lpcr() helper which may need to update state based on the LPCR change. In fact, set_spr() is only ever used for the LPCR, so replace it with an explicit LPCR updated which uses the right low-level helper. While we're there, move the CPU_FOREACH() which was in every one of the callers into the new helper: set_all_lpcrs(). Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org>
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由 David Gibson 提交于
Under PAPR, only the boot CPU is active when the system starts. Other cpus must be explicitly activated using an RTAS call. The entry state for the boot and secondary cpus isn't identical, but it has some things in common. We're going to add a bit more common setup later, too, so to simplify make a helper which sets up the common entry state for both boot and secondary cpu threads. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 David Gibson 提交于
rtas_start_cpu() calls spapr_cpu_update_tb_offset() and spapr_cpu_set_endianness() to initialize certain things in the new cpu's state. This is the only caller of those helpers, and they're each only a few lines long, so we might as well just fold them into the caller. In addition, those helpers initialize state on the new cpu to match that of the first cpu. That will generally work, but might be at least logically incorrect if the first cpu has been set offline by the guest. So, instead base the state on that of the cpu invoking the RTAS call, which is obviously active already. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 David Gibson 提交于
This makes several minor cleanups to these functions: * Follow usual convention of an early exit on error, rather than having most of the body in an if * Clearer naming of cpu and cpu_. Now callcpu is the cpu from which the RTAS call is invoked, newcpu is the cpu which we're starting * Use cpu_synchronize_state() instead of kvm_cpu_synchronize_state() directly * Remove pointless comment describing what cpu_synchronize_state() does * Use ppc_store_lpcr() instead of directly writing the register field Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Tested-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 David Gibson 提交于
Current POWER cpus allow for a VRMA, a special mapping which describes a guest's view of memory when in real mode (MMU off, from the guest's point of view). Older cpus didn't have that which meant that to support a guest a special host-contiguous region of memory was needed to give the guest its Real Mode Area (RMA). KVM used to provide special calls to allocate a contiguous RMA for those cases. This was useful in the early days of KVM on Power to allow it to be tested on PowerPC 970 chips as used in Macintosh G5 machines. Now, those machines are so old as to be almost irrelevant. The normal qemu deprecation process would require this to be marked deprecated then removed in 2 releases. However, this can only be used with corresponding support in the host kernel - which was dropped years ago (in c17b98cf "KVM: PPC: Book3S HV: Remove code for PPC970 processors" of 2014-12-03 to be precise). Therefore it should be ok to drop this immediately. Just to be clear this only affects *KVM HV* guests with PowerPC 970, and those already require an ancient host kernel. TCG and KVM PR guests with PowerPC 970 should still work. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Acked-by: NThomas Huth <thuth@redhat.com>
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- 27 4月, 2018 7 次提交
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由 David Gibson 提交于
Although the order doesn't really matter at the moment, it's possible other initializastions could depend on the compatiblity mode, so make sure we set it first in spapr_cpu_reset(). While we're at it drop the test against first_cpu. Setting the compat mode to the value it already has is redundant, but harmless, so we might as well make a small simplification to the code. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 Bharata B Rao 提交于
The new property ibm,dynamic-memory-v2 allows memory to be represented in a more compact manner in device tree. Signed-off-by: NBharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Igor Mammedov 提交于
Convert PPCE500Params to PCCE500MachineClass which it essentially is, and introduce PCCE500MachineState to keep track of E500 specific state instead of adding global variables or extra parameters to functions when we need to keep data beyond machine init (i.e. make it look like typical fully defined machine). It's pretty shallow conversion instead of currently used trivial DEFINE_MACHINE() macro. It adds extra 60LOC of boilerplate code of full machine definition. The patch on top[1] will use PCCE500MachineState to keep track of platform_bus device and add E500Plate specific machine class to use HOTPLUG_HANDLER for explicitly initializing dynamic sysbus devices at the time they are added instead of delaying it to machine done time by platform_bus_init_notify() which is being removed. 1) <1523551221-11612-3-git-send-email-imammedo@redhat.com> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Suggested-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 Serhii Popovych 提交于
Now recent kernels (i.e. since linux-stable commit a346137e9142 ("powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes") support this property to mark initially memory-less NUMA nodes as "possible" to allow further memory hot-add to them. Advertise this property for pSeries machines to let guest kernels detect maximum supported node configuration and benefit from kernel side change when hot-add memory to specific, possibly empty before, NUMA node. Signed-off-by: NSerhii Popovych <spopovyc@redhat.com> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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由 David Gibson 提交于
The env->slb_nr field gives the size of the SLB (Segment Lookaside Buffer). This is another static-after-initialization parameter of the specific version of the 64-bit hash MMU in the CPU. So, this patch folds the field into PPCHash64Options with the other hash MMU options. This is a bit more complicated that the things previously put in there, because slb_nr was foolishly included in the migration stream. So we need some of the usual dance to handle backwards compatible migration. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 David Gibson 提交于
The ci_large_pages boolean in CPUPPCState is only relevant to 64-bit hash MMU machines, indicating whether it's possible to map large (> 4kiB) pages as cache-inhibitied (i.e. for IO, rather than memory). Fold it as another flag into the PPCHash64Options structure. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NGreg Kurz <groug@kaod.org>
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由 David Gibson 提交于
Currently env->mmu_model is a bit of an unholy mess of an enum of distinct MMU types, with various flag bits as well. This makes which bits of the field should be compared pretty confusing. Make a start on cleaning that up by moving two of the flags bits - POWERPC_MMU_1TSEG and POWERPC_MMU_AMR - which are specific to the 64-bit hash MMU into a new flags field in PPCHash64Options structure. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NGreg Kurz <groug@kaod.org>
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