Sean Christopherson d7507a94a0 KVM: SVM: Treat exit_code as an unsigned 64-bit value through all of KVM ...

Fix KVM's long-standing buggy handling of SVM's exit_code as a 32-bit
value.  Per the APM and Xen commit d1bd157fbc ("Big merge the HVM
full-virtualisation abstractions.") (which is arguably more trustworthy
than KVM), offset 0x70 is a single 64-bit value:

  070h 63:0 EXITCODE

Track exit_code as a single u64 to prevent reintroducing bugs where KVM
neglects to correctly set bits 63:32.

Fixes: 6aa8b732ca ("[PATCH] kvm: userspace interface")
Cc: Jim Mattson <jmattson@google.com>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Reviewed-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Link: https://patch.msgid.link/20251230211347.4099600-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

2026-01-13 17:37:03 -08:00

..

hvgdk_ext.h

hyperv: Add new Hyper-V headers in include/hyperv

2025-01-10 00:54:20 +00:00

hvgdk_mini.h

mshv: Add definitions for MSHV sleep state configuration

2025-12-05 23:24:57 +00:00

hvgdk.h

KVM: SVM: Treat exit_code as an unsigned 64-bit value through all of KVM

2026-01-13 17:37:03 -08:00

hvhdk_mini.h

mshv: Add definitions for MSHV sleep state configuration

2025-12-05 23:24:57 +00:00

hvhdk.h

mshv: adjust interrupt control structure for ARM64

2025-12-05 23:16:49 +00:00