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target/arm: Support PSCI 1.1 and SMCCC 1.0

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Support the latest PSCI on TCG and HVF. A 64-bit function called from
AArch32 now returns NOT_SUPPORTED, which is necessary to adhere to SMC
Calling Convention 1.0. It is still not compliant with SMCCC 1.3 since
they do not implement mandatory functions.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-id: 20220213035753.34577-1-akihiko.odaki@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: update MISMATCH_CHECK checks on PSCI_VERSION macros to match]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Akihiko Odaki 2022-02-13 12:57:53 +09:00 • committed by Peter Maydell
parent d8bdf97972
commit 0dc71c701c
6 changed files with 80 additions and 14 deletions
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12
hw/arm/boot.c
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@ -488,9 +488,15 @@ static void fdt_add_psci_node(void *fdt)
}
qemu_fdt_add_subnode(fdt, "/psci");
if (armcpu->psci_version == 2) {
const char comp[] = "arm,psci-0.2\0arm,psci";
qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
if (armcpu->psci_version == QEMU_PSCI_VERSION_0_2 ||
armcpu->psci_version == QEMU_PSCI_VERSION_1_1) {
if (armcpu->psci_version == QEMU_PSCI_VERSION_0_2) {
const char comp[] = "arm,psci-0.2\0arm,psci";
qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
} else {
const char comp[] = "arm,psci-1.0\0arm,psci-0.2\0arm,psci";
qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
}
cpu_off_fn = QEMU_PSCI_0_2_FN_CPU_OFF;
if (arm_feature(&armcpu->env, ARM_FEATURE_AARCH64)) {