android_kernel_oneplus_msm8998/arch/x86
Wanpeng Li f1fdf68b4f KVM: VMX: Fix enable VPID conditions
[ Upstream commit 08d839c4b134b8328ec42f2157a9ca4b93227c03 ]

This can be reproduced by running L2 on L1, and disable VPID on L0
if w/o commit "KVM: nVMX: Fix nested VPID vmx exec control", the L2
crash as below:

KVM: entry failed, hardware error 0x7
EAX=00000000 EBX=00000000 ECX=00000000 EDX=000306c3
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 00009300
CS =f000 ffff0000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000

Reference SDM 30.3 INVVPID:

Protected Mode Exceptions
- #UD
  - If not in VMX operation.
  - If the logical processor does not support VPIDs (IA32_VMX_PROCBASED_CTLS2[37]=0).
  - If the logical processor supports VPIDs (IA32_VMX_PROCBASED_CTLS2[37]=1) but does
    not support the INVVPID instruction (IA32_VMX_EPT_VPID_CAP[32]=0).

So we should check both VPID enable bit in vmx exec control and INVVPID support bit
in vmx capability MSRs to enable VPID. This patch adds the guarantee to not enable
VPID if either INVVPID or single-context/all-context invalidation is not exposed in
vmx capability MSRs.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-25 14:22:11 +01:00
..
boot x86/boot: Add missing declaration of string functions 2017-08-11 09:08:57 -07:00
configs kconfig: tinyconfig: provide whole choice blocks to avoid warnings 2016-09-24 10:07:42 +02:00
crypto crypto: salsa20 - fix blkcipher_walk API usage 2017-12-20 10:04:51 +01:00
entry x86/asm/64: Clear AC on NMI entries 2017-08-24 17:02:36 -07:00
ia32 Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 21:05:40 -08:00
include x86/irq: Do not substract irq_tlb_count from irq_call_count 2017-12-25 14:22:09 +01:00
kernel x86/irq: Do not substract irq_tlb_count from irq_call_count 2017-12-25 14:22:09 +01:00
kvm KVM: VMX: Fix enable VPID conditions 2017-12-25 14:22:11 +01:00
lguest x86/paravirt: Prevent rtc_cmos platform device init on PV guests 2015-12-19 21:35:13 +01:00
lib x86/decoder: Add new TEST instruction pattern 2017-11-30 08:37:19 +00:00
math-emu Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 21:05:40 -08:00
mm x86/mm, sched/core: Turn off IRQs in switch_mm() 2017-12-25 14:22:09 +01:00
net ebpf: migrate bpf_prog's flags to bitfield 2015-10-03 05:02:39 -07:00
oprofile x86/oprofile/ppro: Do not use __this_cpu*() in preemptible context 2017-11-15 17:13:14 +01:00
pci x86/PCI: Make broadcom_postcore_init() check acpi_disabled 2017-12-16 10:33:48 +01:00
platform Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" 2017-12-16 10:33:57 +01:00
power x86/ldt: Make modify_ldt synchronous 2015-07-31 10:23:23 +02:00
purgatory x86/kexec: add -fno-PIE 2016-11-26 09:54:52 +01:00
ras x86/ras/mce_amd_inj: Inject bank 4 errors on the NBC 2015-10-12 16:15:48 +02:00
realmode Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-02-16 14:58:12 -08:00
tools x86/tools: Fix gcc-7 warning in relocs.c 2017-07-15 11:57:47 +02:00
um x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() 2017-12-09 18:42:40 +01:00
video
xen xen: adjust early dom0 p2m handling to xen hypervisor behavior 2017-05-20 14:26:58 +02:00
.gitignore x86/build: Add arch/x86/purgatory/ make generated files to gitignore 2014-10-09 09:29:46 +02:00
Kbuild x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/ 2015-06-03 18:51:37 +02:00
Kconfig security/keys: add CONFIG_KEYS_COMPAT to Kconfig 2017-11-18 11:11:07 +01:00
Kconfig.cpu x86/Kconfig/cpus: Fix/complete CPU type help texts 2015-10-21 11:12:56 +02:00
Kconfig.debug x86: don't make DEBUG_WX default to 'y' even with DEBUG_RODATA 2015-11-06 09:12:41 -08:00
Makefile Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-11-04 09:11:12 -08:00
Makefile.um kbuild: use relative path more to include Makefile 2015-04-02 16:42:08 +02:00
Makefile_32.cpu