- 21 12月, 2016 1 次提交
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由 Thomas Huth 提交于
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [crisµblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: NThomas Huth <thuth@redhat.com>
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- 01 3月, 2016 1 次提交
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由 David Hildenbrand 提交于
When mmu_translate debugging output is enabled, code won't compile. Let's just use the same statement as in trigger_prot_fault(). Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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- 29 1月, 2016 1 次提交
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由 Peter Maydell 提交于
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1453832250-766-8-git-send-email-peter.maydell@linaro.org
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- 18 12月, 2015 1 次提交
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由 Paolo Bonzini 提交于
In some cases, the same message is printed both on stderr and in the log. Avoid duplicate output in the default case where stderr _is_ the log, and standardize this to stderr+log where it used to use stdio+log. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 03 9月, 2015 1 次提交
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由 Jason J. Herne 提交于
s390 guest initialization is modified to make use of new s390-storage-keys device. Old code that globally allocated storage key array is removed. The new device enables storage key access for kvm guests. Cache storage key QOM objects in frequently used helper functions to avoid a performance hit every time we use one of these functions. Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: NThomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: NJason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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- 06 7月, 2015 1 次提交
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由 Peter Maydell 提交于
Including qemu-common.h from other header files is generally a bad idea, because it means it's very easy to end up with a circular dependency. For instance, if we wanted to include memory.h from qom/cpu.h we'd end up with this loop: memory.h -> qemu-common.h -> cpu.h -> cpu-qom.h -> qom/cpu.h -> memory.h Remove the include from memory.h. This requires us to fix up a few other files which were inadvertently getting declarations indirectly through memory.h. The biggest change is splitting the fprintf_function typedef out into its own header so other headers can get at it without having to include qemu-common.h. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Message-Id: <1435933104-15216-1-git-send-email-peter.maydell@linaro.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 05 6月, 2015 1 次提交
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由 Alexander Graf 提交于
We allocate ram_size / PAGE_SIZE storage keys, so we need to make sure that we only access that many. Unfortunately the code can overrun this array by one, potentially overwriting unrelated memory. Fix it by limiting storage keys to their scope. Signed-off-by: NAlexander Graf <agraf@suse.de> Reviewed-by: NAurelien Jarno <aurelien@aurel32.net>
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- 30 4月, 2015 4 次提交
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由 Stefan Weil 提交于
All of them were reported by codespell. Most typos are in comments, one is in an error message. Signed-off-by: NStefan Weil <sw@weilnetz.de> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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由 Alexander Yarygin 提交于
Access register mode is one of the modes that control dynamic address translation. In this mode the address space is specified by values of the access registers. The effective address-space-control element is obtained from the result of the access register translation. See the "Access-Register Introduction" section of the chapter 5 "Program Execution" in "Principles of Operations" for more details. When the CPU is in AR mode, the s390_cpu_virt_mem_rw() function must know which access register number to use for address translation. This patch does several things: - add new parameter 'uint8_t ar' to that function - decode ar number from intercepted instructions - pass the ar number to s390_cpu_virt_mem_rw(), which in turn passes it to the KVM_S390_MEM_OP ioctl. Signed-off-by: NAlexander Yarygin <yarygin@linux.vnet.ibm.com> Reviewed-by: NThomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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由 Thomas Huth 提交于
Add code to make use of the new ioctl for reading from / writing to virtual guest memory. By using the ioctl, the memory accesses are now protected with the so-called ipte-lock in the kernel. [CH: moved error message into kvm_s390_mem_op()] Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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由 Thomas Huth 提交于
Since there are now proper definitions for the MMU access type, let's use them in the s390x MMU code, too, instead of the hard-to-understand magic values. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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- 18 2月, 2015 14 次提交
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由 Thomas Huth 提交于
According to the POP specification, the parameter blocks of various functions like the IO instructions are accessed with logical addresses. Thus we need a function that can read or write a buffer from/to the guest's logical address space. This patch now provides a function that can be used to access virtual guest memory by using the mmu_translate function of QEMU to convert the virtual addresses to physical. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
Program access exceptions are defined to deliver a translation exception code in the low-core. Add a function trigger_access_exception() that generates the proper program interrupt on both KVM and non-KVM systems and switch the existing code to use it. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
We can get rid of the switch(asc) in mmu_translate_asc() by simply selecting the right control register ASCE in the mmu_translate() function already. This patch is based on an original patch/idea by Ralf Hoppe. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
Bit 52 in a page table entry has always to be zero, or a translation specification exception is to be recognized. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
An Address Space Control Element (ASCE) is only the very first unit of an s390 address translation (normally residing in one of the control registers). The entries in the page tables are called differently. So let's call the relevant variable pt_entry instead of asce in mmu_translate_pte() to avoid future confusion (thus there is no functional change in this patch, just renaming). Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
If the "DAT-protection" bit is set in the region table entry and EDAT is enabled, only read accesses are allowed in the corresponding memory area. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
Each different level of region/segment table has a dedicated exception type for illegal entries. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
If an ASCE has illegal bits set, an ASCE-type exception should be generated instead of a translation specification exception. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
The address space bits in the translation exception code were wrong. In fact, we can simply copy the bits from the PSW, so there's no need for the trans_bits() function anymore. Additionally, we now also set the fetch/store bits in the translation exception code, so a guest can determine whether the exception occured during a write or during a read. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
When a fault occurs during the MMU lookup in s390_cpu_get_phys_page_debug(), the trigger_page_fault() function writes the translation exception code into the lowcore - something you would not expect during a memory access by the debugger. Ease this problem by adding an additional parameter to mmu_translate() which can be used to specify whether a program check and the translation exception code should be injected or not. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
The ACSEs have a table length field and the region entries have table length and offset fields which must be checked during translation to see whether the given virtual address is really covered by the translation table. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
The current code used a wrong and very confusing way of dealing with the table levels by introducing a "fake level above current". However, the real problem was simply that the checks for the region/segment invalid bit and for the matching region/segment level was done at the wrong spot in the code - it has to be done after the first table entry has been looked up instead (e.g. there is also no "invalid" bit in the ASCE itself and the current "level" has to be the same as the level in the entry that we just looked up). Also the entries for the segment table are quite a bit different compared to the region table entries. So this patch moves the related code into the function mmu_translate_segment() to make it clear at which table level we currently are and to get rid of the ugly switch-statement in the function mmu_translate_region(). Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
The real-space designation bits live in the ASCEs, not in the table entries, so the check must be done before we start walking the MMU table. Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Thomas Huth 提交于
helper.c is quite overcrowded already, so let's move the MMU translation to a separate file instead (like it has been done with the other targets already). Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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