summaryrefslogtreecommitdiffstats
path: root/Documentation/virtual/kvm/api.txt
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2012-01-07 12:30:20 +0000
committerArnd Bergmann <arnd@arndb.de>2012-01-07 12:42:17 +0000
commit237c78beb8a988453bac1993d21f025d070a0d8d (patch)
tree9864f0924650770881141359a2d5bac623949789 /Documentation/virtual/kvm/api.txt
parent4eb821999086417ab42a15174b51497122fc406e (diff)
parent7b9dd47136c07ffd883aff6926c7b281e4c1eea4 (diff)
Merge branch 'depends/rmk/for-linus' into samsung/dt
Conflicts: arch/arm/mach-exynos/Makefile arch/arm/mach-exynos/cpu.c -> common.c arch/arm/mach-exynos/include/mach/entry-macro.S arch/arm/mach-exynos/init.c -> common.c arch/arm/mach-s5p64x0/init.c -> common.c arch/arm/mach-s5pv210/init.c -> common.c Multiple files were moved into common.c files in the rmk/for-linus branch, so this moves over the samsung/dt changes to the new files. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/virtual/kvm/api.txt')
-rw-r--r--Documentation/virtual/kvm/api.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 7945b0bd35e..e2a4b528736 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1100,6 +1100,15 @@ emulate them efficiently. The fields in each entry are defined as follows:
eax, ebx, ecx, edx: the values returned by the cpuid instruction for
this function/index combination
+The TSC deadline timer feature (CPUID leaf 1, ecx[24]) is always returned
+as false, since the feature depends on KVM_CREATE_IRQCHIP for local APIC
+support. Instead it is reported via
+
+ ioctl(KVM_CHECK_EXTENSION, KVM_CAP_TSC_DEADLINE_TIMER)
+
+if that returns true and you use KVM_CREATE_IRQCHIP, or if you emulate the
+feature in userspace, then you can enable the feature for KVM_SET_CPUID2.
+
4.47 KVM_PPC_GET_PVINFO
Capability: KVM_CAP_PPC_GET_PVINFO
@@ -1151,6 +1160,13 @@ following flags are specified:
/* Depends on KVM_CAP_IOMMU */
#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)
+The KVM_DEV_ASSIGN_ENABLE_IOMMU flag is a mandatory option to ensure
+isolation of the device. Usages not specifying this flag are deprecated.
+
+Only PCI header type 0 devices with PCI BAR resources are supported by
+device assignment. The user requesting this ioctl must have read/write
+access to the PCI sysfs resource files associated with the device.
+
4.49 KVM_DEASSIGN_PCI_DEVICE
Capability: KVM_CAP_DEVICE_DEASSIGNMENT