bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

KVM: arm64: nv: Use guest hypervisor's vSError state

Browse Source 
When HCR_EL2.AMO is set, physical SErrors are routed to EL2 and virtual
SError injection is enabled for EL1. Conceptually treating
host-initiated SErrors as 'physical', this means we can delegate control
of the vSError injection context to the guest hypervisor when nesting &&
AMO is set.

Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250708172532.1699409-9-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Oliver Upton
2025-07-08 10:25:13 -07:00
parent 211fced460
commit 18fbc24707
4 changed files with 77 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/include/asm/kvm_host.h
View File

@@ -1682,6 +1682,9 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val);
#define kvm_has_s1poe(k) \
(kvm_has_feat((k), ID_AA64MMFR3_EL1, S1POE, IMP))
#define kvm_has_ras(k) \
(kvm_has_feat((k), ID_AA64PFR0_EL1, RAS, IMP))
static inline bool kvm_arch_has_irq_bypass(void)
{
return true;