Sean Christopherson 44da6629d2 KVM: Use vCPU specific memslots in __kvm_vcpu_map() ... When establishing a "host access map", lookup the gfn in the vCPU specific memslots, as the intent is that the mapping will be established for the current vCPU context. Specifically, using __kvm_vcpu_map() in x86's SMM context should create mappings based on the SMM memslots, not the non-SMM memslots. Luckily, the bug is benign as x86 is the only architecture with multiple memslot address spaces, and all of x86's usage is limited to non-SMM. The calls in (or reachable by) {svm,vmx}_enter_smm() are made before enter_smm() sets HF_SMM_MASK, and the calls in {svm,vmx}_leave_smm() are made after emulator_leave_smm() clears HF_SMM_MASK. Note, kvm_vcpu_unmap() uses the vCPU specific memslots, only the map() side of things is broken. Fixes: 357a18ad23 ("KVM: Kill kvm_map_gfn() / kvm_unmap_gfn() and gfn_to_pfn_cache") Link: https://patch.msgid.link/20251121223444.355422-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>		2026-01-08 11:58:21 -08:00
..
kvm	KVM: Use vCPU specific memslots in __kvm_vcpu_map()	2026-01-08 11:58:21 -08:00
lib	irqbypass: Require producers to pass in Linux IRQ number during registration	2025-06-20 13:52:41 -07:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00