950936681f
Right now translator stops right *after* the end of a page, which breaks reporting of fault locations when the last instruction of a multi-insn translation block crosses a page boundary. An implementation, like the one arm and s390x have, would require an i386 length disassembler, which is burdensome to maintain. Another alternative would be to single-step at the end of a guest page, but this may come with a performance impact. Fix by snapshotting disassembly state and restoring it after we figure out we crossed a page boundary. This includes rolling back cc_op updates and emitted ops. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1143 Message-Id: <20220817150506.592862-4-iii@linux.ibm.com> [rth: Simplify end-of-insn cross-page checks.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> |
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| .. | ||
| hax | ||
| hvf | ||
| kvm | ||
| nvmm | ||
| tcg | ||
| whpx | ||
| arch_dump.c | ||
| arch_memory_mapping.c | ||
| cpu-dump.c | ||
| cpu-internal.h | ||
| cpu-param.h | ||
| cpu-qom.h | ||
| cpu-sysemu.c | ||
| cpu.c | ||
| cpu.h | ||
| gdbstub.c | ||
| helper.c | ||
| helper.h | ||
| host-cpu.c | ||
| host-cpu.h | ||
| Kconfig | ||
| machine.c | ||
| meson.build | ||
| monitor.c | ||
| ops_sse_header.h | ||
| ops_sse.h | ||
| sev-sysemu-stub.c | ||
| sev.c | ||
| sev.h | ||
| shift_helper_template.h | ||
| svm.h | ||
| trace-events | ||
| trace.h | ||
| xsave_helper.c | ||