- 05 3月, 2007 8 次提交
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由 Eric W. Biederman 提交于
In some cases when we are not using msi we need a way to ensure that the hardware does not have an msi capability enabled. Currently the code has been calling disable_msi_mode to try and achieve that. However disable_msi_mode has several other side effects and is only available when msi support is compiled in so it isn't really appropriate. Instead this patch implements pci_msi_off which disables all msi and msix capabilities unconditionally with no additional side effects. pci_disable_device was redundantly clearing the bus master enable flag and clearing the msi enable bit. A device that is not allowed to perform bus mastering operations cannot generate intx or msi interrupt messages as those are essentially a special case of dma, and require bus mastering. So the call in pci_disable_device to disable msi capabilities was redundant. quirk_pcie_pxh also called disable_msi_mode and is updated to use pci_msi_off. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
In http://bugzilla.kernel.org/show_bug.cgi?id=8065, Shen points out that the cyclades driver forget to return closing_wait to userspace. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Shen <shanlu@cs.uiuc.edu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Russell King 提交于
Move the Acorn IOC/IOMD I2C bus driver from drivers/i2c, strip out the reminants of the platform specific parts of the old PCF8583 RTC code, and remove the old obsolete PCF8583 driver. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
An off-by-one bug meant we were always trying to map one too many scatterlist entries. This was mostly harmless prior to the checks going in to consistent_sync(), but now causes the kernel to BUG. Also, powertec.c was missing an assignment to info->ec. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
SCSI doesn't want drivers to modify request_bufflen, so keep a driver-private copy of this in the scsi_pointer structure instead. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Replace the I2C bus address, as per drivers/acorn/char/pcf8583.c. Also, since this driver also contains Acorn RiscPC specific code for obtaining the current year from the SRAM (and updating the platform specific checksum when writing new data back) this is NOT a platform independent driver. Document it as such, and update the dependencies to reflect this fact. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
No, today is not 4th April 3907, it's 4th March 2007. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Both BCD_TO_BIN(x) and BIN_TO_BCD(x) have an unexpected side-effect - not only do they return the value as expected, they _modify_ their argument in the process. Let's play it safe and avoid these macros. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 04 3月, 2007 32 次提交
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由 Andrew Morton 提交于
Use the standard magic.h for kvmfs. Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
A bogus 'return r' can cause an otherwise successful module load to fail. This both denies users the use of kvm, and it also denies them the use of their machine, as it leaves a filesystem registered with its callbacks pointing into now-freed module memory. Fix by returning a zero like a good module. Thanks to Richard Lucassen <mailinglists@lucassen.org> (?) for reporting the problem and for providing access to a machine which exhibited it. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Uri Lublin 提交于
Enabling dirty page logging is done using KVM_SET_MEMORY_REGION ioctl. If the memory region already exists, we need to remove write accesses, so writes will be caught, and dirty pages will be logged. Signed-off-by: NUri Lublin <uril@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Uri Lublin 提交于
To be called from kvm_vm_ioctl_set_memory_region() Signed-off-by: NUri Lublin <uril@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Uri Lublin 提交于
Since dirty_bitmap is an unsigned long array, the alignment and size need to take that into account. Signed-off-by: NUri Lublin <uril@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Uri Lublin 提交于
A few places where we modify guest memory fail to call mark_page_dirty(), causing live migration to fail. This adds the missing calls. Signed-off-by: NUri Lublin <uril@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Allocate a distinct inode for every vcpu in a VM. This has the following benefits: - the filp cachelines are no longer bounced when f_count is incremented on every ioctl() - the API and internal code are distinctly clearer; for example, on the KVM_GET_REGS ioctl, there is no need to copy the vcpu number from userspace and then copy the registers back; the vcpu identity is derived from the fd used to make the call Right now the performance benefits are completely theoretical since (a) we don't support more than one vcpu per VM and (b) virtualization hardware inefficiencies completely everwhelm any cacheline bouncing effects. But both of these will change, and we need to prepare the API today. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
In preparation of some hacking. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This reflects the changed scope, from device-wide to single vm (previously every device open created a virtual machine). Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This avoids having filp->f_op and the corresponding inode->i_fop different, which is a little unorthodox. The ioctl list is split into two: global kvm ioctls and per-vm ioctls. A new ioctl, KVM_CREATE_VM, is used to create VMs and return the VM fd. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
The kvmfs inodes will represent virtual machines and vcpus, as necessary, reducing cacheline bouncing due to inodes and filps being shared. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Joerg Roedel 提交于
This patch changes the SVM code to intercept SMIs and handle it outside the guest. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Ingo Molnar 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Ingo Molnar 提交于
This adds a special MSR based hypercall API to KVM. This is to be used by paravirtual kernels and virtual drivers. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Markus Rechberger 提交于
Besides using an established api, this allows using kvm in older kernels. Signed-off-by: NMarkus Rechberger <markus.rechberger@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Ahmed S. Darwish 提交于
Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com> Signed-off-by: NDor Laor <dor.laor@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Joerg Roedel 提交于
The whole thing is rotten, but this allows vmx to boot with the guest reboot fix. Signed-off-by: NMarkus Rechberger <markus.rechberger@amd.com> Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jeremy Katz 提交于
This gives it more chances of surviving suspend. Signed-off-by: NJeremy Katz <katzj@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
We fail to mark a page dirty in three cases: - setting the accessed bit in a pte - setting the dirty bit in a pte - emulating a write into a pagetable This fix adds the missing cases. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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Legacy IDE VLB host drivers didn't check for "probe" options when compiled as modules, which was obviously wrong as we don't want module to poke at random I/O ports by simply loading it. Fix it by adding "probe" module param to legacy IDE VLB host drivers. v2: * don't obsolete old "ide0=dtc2278/ht6560b/qd65xx/ali14xx/umc8672" IDE driver options yet (per Alan Cox's request) and enhance documentation Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove * "hdx=serialize" * "idex=noautotune" * "idex=autotune" kernel params, they have been obsoleted for ages. "idex=serialize", "hdx=noautotune" and "hdx=autotune" are still available so there is no funcionality loss caused by this patch. v2: * fix CONFIG_BLK_DEV_4DRIVES=y build broken by version 1 of the patch [ /me wearing brown paper bag ] Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Richard Knutsson 提交于
Convert pci_module_init() to pci_register_driver(). [ Compile-tested with "allyes", "allmod" & "allno" on i386. ] Signed-off-by: NRichard Knutsson <ricknu-0@student.ltu.se> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Akira Iguchi 提交于
On Tuesday 27 February 2007, Akira Iguchi wrote: > > But since I sent the first patch, I found a bug for checking DMA IRQ status. > (http://www.spinics.net/lists/linux-ide/msg06903.html) > Then I sent the fixed patch for libata only. So my drivers/ide patch > still has same bug and I want to fix it, too. > > The following patch fixes this bug. Please apply this patch. From: Akira Iguchi <akira2.iguchi@toshiba.co.jp> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Alan Cox 提交于
Revised DRAC4 warning as Jeff suggested, this one includes more info about why the problem occurs Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Jan Beulich 提交于
The change to force legacy mode IDE channels' resources to fixed non-zero values confuses (at least some versions of) X, because the values reported by the kernel and those readable from PCI config space aren't consistent anymore. Therefore, this patch arranges for the respective BARs to also get updated if possible. Signed-off-by: NJan Beulich <jbeulich@novell.com> Acked-by: NAlan Cox <alan@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Andrew Morton 提交于
Fix breakage added in the IDE devel tree. Add header, then fix drivers/ide/ppc/pmac.c: In function `pmac_ide_setup_dma': drivers/ide/ppc/pmac.c:2044: warning: assignment from incompatible pointer type drivers/ide/ppc/pmac.c: In function `pmac_ide_dma_host_on': drivers/ide/ppc/pmac.c:1989: warning: control reaches end of non-void function include/linux/pci.h: In function `pmac_ide_init': drivers/ide/ppc/pmac.c:1563: warning: ignoring return value of `pci_register_driver', declared with attribute warn_unused_result Then add some apparently-long-missing error handling. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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