Yuan Yao d2263de137 KVM: x86/mmu: Set memory encryption "value", not "mask", in shadow PDPTRs ... Assign shadow_me_value, not shadow_me_mask, to PAE root entries, a.k.a. shadow PDPTRs, when host memory encryption is supported. The "mask" is the set of all possible memory encryption bits, e.g. MKTME KeyIDs, whereas "value" holds the actual value that needs to be stuffed into host page tables. Using shadow_me_mask results in a failed VM-Entry due to setting reserved PA bits in the PDPTRs, and ultimately causes an OOPS due to physical addresses with non-zero MKTME bits sending to_shadow_page() into the weeds: set kvm_intel.dump_invalid_vmcs=1 to dump internal KVM state. BUG: unable to handle page fault for address: ffd43f00063049e8 PGD 86dfd8067 P4D 0 Oops: 0000 [#1] PREEMPT SMP RIP: 0010:mmu_free_root_page+0x3c/0x90 [kvm] kvm_mmu_free_roots+0xd1/0x200 [kvm] __kvm_mmu_unload+0x29/0x70 [kvm] kvm_mmu_unload+0x13/0x20 [kvm] kvm_arch_destroy_vm+0x8a/0x190 [kvm] kvm_put_kvm+0x197/0x2d0 [kvm] kvm_vm_release+0x21/0x30 [kvm] __fput+0x8e/0x260 ____fput+0xe/0x10 task_work_run+0x6f/0xb0 do_exit+0x327/0xa90 do_group_exit+0x35/0xa0 get_signal+0x911/0x930 arch_do_signal_or_restart+0x37/0x720 exit_to_user_mode_prepare+0xb2/0x140 syscall_exit_to_user_mode+0x16/0x30 do_syscall_64+0x4e/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Fixes: e54f1ff244 ("KVM: x86/mmu: Add shadow_me_value and repurpose shadow_me_mask") Signed-off-by: Yuan Yao <yuan.yao@intel.com> Reviewed-by: Kai Huang <kai.huang@intel.com> Message-Id: <20220608012015.19566-1-yuan.yao@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-06-09 10:52:16 -04:00
..
boot	Follow-up tweaks for the EFI changes in v5.19	2022-06-03 13:39:30 -07:00
coco	Intel Trust Domain Extensions	2022-05-23 17:51:12 -07:00
configs	x86/config: Make the x86 defconfigs a bit more usable	2022-03-27 20:58:35 +02:00
crypto	crypto: x86 - eliminate anonymous module_init & module_exit	2022-04-08 16:13:31 +08:00
entry	kernel-hardening updates for v5.19-rc1	2022-05-24 12:27:09 -07:00
events	Two small perf updates:	2022-06-05 10:40:31 -07:00
hyperv	hyperv-next for 5.17	2022-01-16 15:53:00 +02:00
ia32	x86: Remove a.out support	2022-04-11 18:04:27 +02:00
include	KVM/riscv fixes for 5.19, take #1	2022-06-09 09:45:00 -04:00
kernel	Hot fixes for 5.19-rc1.	2022-06-05 17:05:38 -07:00
kvm	KVM: x86/mmu: Set memory encryption "value", not "mask", in shadow PDPTRs	2022-06-09 10:52:16 -04:00
lib	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
math-emu	x86/32: Remove lazy GS macros	2022-04-14 14:09:43 +02:00
mm	Use PAGE_ALIGNED() instead of open coding it in the x86/mm code.	2022-06-05 10:57:35 -07:00
net	bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack	2022-05-23 23:08:11 +02:00
pci	pci-v5.19-changes	2022-05-27 15:25:10 -07:00
platform	arch/x86: replace cpumask_weight with cpumask_empty where appropriate	2022-06-03 06:52:57 -07:00
power	x86/cpu: Load microcode during restore_processor_state()	2022-04-19 19:37:05 +02:00
purgatory
ras
realmode	Intel Trust Domain Extensions	2022-05-23 17:51:12 -07:00
tools
um	um: Fix out-of-bounds read in LDT setup	2022-05-27 09:03:41 +02:00
video
virt/vmx/tdx	x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers	2022-04-07 08:27:50 -07:00
xen	More power management updates for 5.19-rc1	2022-05-30 11:37:26 -07:00
.gitignore
Kbuild	x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}	2022-02-23 18:25:58 +01:00
Kconfig	X86 microcode updates:	2022-06-05 10:55:23 -07:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug	x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug	2022-05-25 15:39:27 +02:00
Makefile	Kbuild updates for v5.19	2022-05-26 12:09:50 -07:00
Makefile_32.cpu
Makefile.um