AuxXxilium/linux_dsm_epyc7002
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13b964a29d
linux_dsm_epyc7002/arch/x86
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Sean Christopherson 13b964a29d KVM: nVMX: Don't "put" vCPU or host state when switching VMCS 
When switching between vmcs01 and vmcs02, KVM isn't actually switching
between guest and host.  If guest state is already loaded (the likely,
if not guaranteed, case), keep the guest state loaded and manually swap
the loaded_cpu_state pointer after propagating saved host state to the
new vmcs0{1,2}.

Avoiding the switch between guest and host reduces the latency of
switching between vmcs01 and vmcs02 by several hundred cycles, and
reduces the roundtrip time of a nested VM by upwards of 1000 cycles.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-18 11:46:55 +02:00
..
boot treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83 2019-05-24 17:37:52 +02:00
configs x86/defconfig: Remove archaic partition tables support 2019-04-19 12:29:48 +02:00
crypto treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
entry treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
events treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hyperv treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
ia32 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
include KVM: VMX: Handle NMIs, #MCs and async #PFs in common irqs-disabled fn 2019-06-18 11:46:04 +02:00
kernel treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
kvm KVM: nVMX: Don't "put" vCPU or host state when switching VMCS 2019-06-18 11:46:55 +02:00
lib treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
math-emu x86/fpu: Always init the state in fpu__clear() 2019-04-09 19:28:06 +02:00
mm treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
net treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
oprofile
pci treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
platform treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 82 2019-05-24 17:37:52 +02:00
power crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
purgatory
ras
realmode x86/realmode: Make set_real_mode_mem() static inline 2019-03-29 10:16:27 +01:00
tools Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-06 15:56:41 -07:00
um audit/stable-5.2 PR 20190507 2019-05-07 19:06:04 -07:00
video treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
xen xen: fixes and features for 5.2-rc1 2019-05-15 18:44:52 -07:00
.gitignore
Kbuild KVM: x86: Allow Qemu/KVM to use PVH entry point 2018-12-13 13:41:49 -05:00
Kconfig Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-16 11:02:27 -07:00
Kconfig.cpu x86/cpu: Create Hygon Dhyana architecture support file 2018-09-27 16:14:05 +02:00
Kconfig.debug compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING 2019-05-14 19:52:48 -07:00
Makefile x86/build: Keep local relocations with ld.lld 2019-04-05 12:34:35 +02:00
Makefile_32.cpu
Makefile.um x86, powerpc: Remove -funit-at-a-time compiler option entirely 2018-12-09 11:55:32 +01:00