diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/arm-cpreg-fix.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/arm-cpreg-fix.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/arm-cpreg-fix.patch b/meta/recipes-devtools/qemu/qemu/arm-cpreg-fix.patch new file mode 100644 index 0000000000..071691f8ca --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/arm-cpreg-fix.patch @@ -0,0 +1,27 @@ +target/arm: mark SP_EL1 with ARM_CP_EL3_NO_EL2_KEEP + +SP_EL1 must be kept when EL3 is present but EL2 is not. Therefore mark +it with ARM_CP_EL3_NO_EL2_KEEP. + +Fixes: 696ba3771894 ("target/arm: Handle cpreg registration for missing EL") +Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> + +Upstream-Status: Submitted [https://lists.gnu.org/archive/html/qemu-devel/2022-09/msg04515.html] + +--- + target/arm/helper.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +Index: qemu-7.1.0/target/arm/helper.c +=================================================================== +--- qemu-7.1.0.orig/target/arm/helper.c ++++ qemu-7.1.0/target/arm/helper.c +@@ -4971,7 +4971,7 @@ static const ARMCPRegInfo v8_cp_reginfo[ + .fieldoffset = offsetof(CPUARMState, sp_el[0]) }, + { .name = "SP_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 1, .opc2 = 0, +- .access = PL2_RW, .type = ARM_CP_ALIAS, ++ .access = PL2_RW, .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_KEEP, + .fieldoffset = offsetof(CPUARMState, sp_el[1]) }, + { .name = "SPSel", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 0, |