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hvf: arm: Do not advance PC when raising an exception

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hvf did not advance PC when raising an exception for most unhandled
system registers, but it mistakenly advanced PC when raising an
exception for GICv3 registers.

Cc: qemu-stable@nongnu.org
Fixes: a2260983c6 ("hvf: arm: Add support for GICv3")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-id: 20240716-pmu-v3-4-8c7c1858a227@daynix.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Akihiko Odaki 2024-07-16 21:50:33 +09:00 committed by Peter Maydell
parent 71328d8289
commit 30a1690f24
1 changed files with 1 additions and 0 deletions
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target/arm/hvf/hvf.c
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@ -1278,6 +1278,7 @@ static int hvf_sysreg_read(CPUState *cpu, uint32_t reg, uint32_t rt)
/* Call the TCG sysreg handler. This is only safe for GICv3 regs. */
if (!hvf_sysreg_read_cp(cpu, reg, &val)) {
hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
return 1;
}
break;
case SYSREG_DBGBVR0_EL1: