Muminul Islam 475c8d3efb hypervisor: mshv: Use VP register page for state access ...

Use the VP register page to read and write emulation-related
special registers directly, avoiding expensive IOCTLs for
registers that instruction emulation never touches.

In cpu_state(), read only segments, cr0, and efer from the VP
register page instead of calling get_sregs() which issues
IOCTLs for tr, ldt, gdt, idt, cr2, apic_base, and
pending_interruption.

In update_cpu_state(), when segments change, write only the 6
segment registers to the VP register page and set the segment
dirty bit, instead of calling set_sregs() which issues IOCTLs
for tr, ldt, gdt, idt, cr0-cr4, cr8, efer, and apic_base.

Both paths fall back to the IOCTL-based methods when the VP
register page is not available.

Signed-off-by: Muminul Islam <muislam@microsoft.com>

2026-04-29 15:07:26 +00:00

..

src

hypervisor: mshv: Use VP register page for state access

2026-04-29 15:07:26 +00:00

Cargo.toml

build(deps): bump the non-rust-vmm group across 2 directories with 22 updates

2026-04-24 00:47:54 +00:00