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hypervisor: mshv: fix advance_rip_update_rax() helper

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The dirty bit for the GP registers must be set for the hypervisor to
update them.

Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
This commit is contained in:
Nuno Das Neves
2025-06-05 12:36:26 -07:00
committed by Muminul Islam Russell
parent fc01e4cbec
commit 59e11f1b0b
1 changed files with 2 additions and 1 deletions
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3
hypervisor/src/mshv/mod.rs
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@@ -1711,10 +1711,11 @@ impl MshvVcpu {
if let Some(reg_page) = self.fd.get_vp_reg_page() {
let vp_reg_page = reg_page.0;
set_gp_regs_field_ptr!(vp_reg_page, rax, ret_rax);
// SAFETY: access union fields
// SAFETY: access raw pointer to reg page, access union fields
unsafe {
(*vp_reg_page).__bindgen_anon_1.__bindgen_anon_1.rip = info.header.rip + insn_len;
(*vp_reg_page).dirty |= 1 << HV_X64_REGISTER_CLASS_IP;
(*vp_reg_page).dirty |= 1 << HV_X64_REGISTER_CLASS_GENERAL;
}
} else {
let arr_reg_name_value = [