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a5ba67b42f
Omit RIP from the emulator's _regs array, which is used only for GPRs, i.e. registers that can be referenced via ModRM and/or SIB bytes. The emulator uses the dedicated _eip field for RIP, and manually reads from _eip to handle RIP-relative addressing. To avoid an even bigger, slightly more dangerous change, hardcode the number of GPRs to 16 for the time being even though 32-bit KVM's emulator technically should only have 8 GPRs. Add a TODO to address that in a future commit. See also the comments above the read_gpr() and write_gpr() declarations, and obviously the handling in writeback_registers(). No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Message-Id: <20220526210817.3428868-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| .. | ||
| boot | ||
| coco | ||
| configs | ||
| crypto | ||
| entry | ||
| events | ||
| hyperv | ||
| ia32 | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| pci | ||
| platform | ||
| power | ||
| purgatory | ||
| ras | ||
| realmode | ||
| tools | ||
| um | ||
| video | ||
| virt/vmx/tdx | ||
| xen | ||
| .gitignore | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.assembler | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Makefile | ||
| Makefile_32.cpu | ||
| Makefile.um | ||