From a7aa2af13e287e11cb2d73972353bfec161803a4 Mon Sep 17 00:00:00 2001 From: Mohamed Mediouni Date: Mon, 21 Jul 2025 17:29:02 +0200 Subject: [PATCH] target/arm: hvf: stubbing reads to LORC_EL1 Linux zeroes LORC_EL1 on boot at EL2, without further interaction with FEAT_LOR afterwards. Stub out LORC_EL1 accesses as FEAT_LOR is a mandatory extension on Armv8.1+. Signed-off-by: Mohamed Mediouni Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- target/arm/hvf/hvf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index bd6b5d11de..47b0cd3a35 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -186,6 +186,7 @@ void hvf_arm_init_debug(void) #define SYSREG_OSLAR_EL1 SYSREG(2, 0, 1, 0, 4) #define SYSREG_OSLSR_EL1 SYSREG(2, 0, 1, 1, 4) #define SYSREG_OSDLR_EL1 SYSREG(2, 0, 1, 3, 4) +#define SYSREG_LORC_EL1 SYSREG(3, 0, 10, 4, 3) #define SYSREG_CNTPCT_EL0 SYSREG(3, 3, 14, 0, 1) #define SYSREG_CNTP_CTL_EL0 SYSREG(3, 3, 14, 2, 1) #define SYSREG_PMCR_EL0 SYSREG(3, 3, 9, 12, 0) @@ -1657,6 +1658,9 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val) case SYSREG_OSDLR_EL1: /* Dummy register */ return 0; + case SYSREG_LORC_EL1: + /* Dummy register */ + return 0; case SYSREG_ICC_AP0R0_EL1: case SYSREG_ICC_AP0R1_EL1: case SYSREG_ICC_AP0R2_EL1: