soc/amd/stoneyridge/psp: fix check of MSR_PSP_ADDR contents

TEST=Checked documentation, but not verified on hardware.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I06399ac9cb9c90701dbcba71cbc808a0d7e6ea0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Felix Held 2021-01-29 22:33:17 +01:00
parent 4836889249
commit 31fdefe584

View File

@ -45,7 +45,7 @@ void *soc_get_mbox_address(void)
* the MSR instead. */ * the MSR instead. */
if (pci_read_config32(SOC_PSP_DEV, PSP_BAR_ENABLES) & BAR3HIDE) { if (pci_read_config32(SOC_PSP_DEV, PSP_BAR_ENABLES) & BAR3HIDE) {
psp_mmio = rdmsr(MSR_PSP_ADDR).lo; psp_mmio = rdmsr(MSR_PSP_ADDR).lo;
if (psp_mmio == 0xffffffff) { if (!psp_mmio) {
printk(BIOS_WARNING, "PSP: BAR hidden, MSR_PSP_ADDR uninitialized\n"); printk(BIOS_WARNING, "PSP: BAR hidden, MSR_PSP_ADDR uninitialized\n");
return 0; return 0;
} }