diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2021-10-28 16:48:36 +0200 |
|---|---|---|
| committer | Arthur Heymans <arthur@aheymans.xyz> | 2022-06-01 10:43:07 +0000 |
| commit | 4db2e8e88a05c8858bd19d516e10df4825621bfa (patch) | |
| tree | 9bdc8b568a197587b4bbd037b55f44fe0298471b /src/mainboard/emulation/qemu-q35 | |
| parent | 460936567f2ebd62f78dbb18e4bacab03ec5b056 (diff) | |
mb/emulation/qemu-q35: Support PARALLEL_MP with SMM_ASEG
Tested with SMI_DEBUG: SMM prints things on the console.
Change-Id: I7db55aaabd16a6ef585c4802218790bf04650b13
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/mainboard/emulation/qemu-q35')
| -rw-r--r-- | src/mainboard/emulation/qemu-q35/cpu.c | 9 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-q35/memmap.c | 8 |
2 files changed, 15 insertions, 2 deletions
diff --git a/src/mainboard/emulation/qemu-q35/cpu.c b/src/mainboard/emulation/qemu-q35/cpu.c index fb31fc5963..fe3a571021 100644 --- a/src/mainboard/emulation/qemu-q35/cpu.c +++ b/src/mainboard/emulation/qemu-q35/cpu.c @@ -12,7 +12,14 @@ static void get_smm_info(uintptr_t *perm_smbase, size_t *perm_smsize, { printk(BIOS_DEBUG, "Setting up SMI for CPU\n"); - smm_subregion(SMM_SUBREGION_HANDLER, perm_smbase, perm_smsize); + if (CONFIG(SMM_TSEG)) + smm_subregion(SMM_SUBREGION_HANDLER, perm_smbase, perm_smsize); + + if (CONFIG(SMM_ASEG)) { + smm_open_aseg(); + *perm_smbase = 0xa0000; + *perm_smsize = 0x10000; + } /* FIXME: on X86_64 the save state size is smaller than the size of the SMM stub */ *smm_save_state_size = sizeof(amd64_smm_state_save_area_t); diff --git a/src/mainboard/emulation/qemu-q35/memmap.c b/src/mainboard/emulation/qemu-q35/memmap.c index 7d5180e819..e73e0dfa12 100644 --- a/src/mainboard/emulation/qemu-q35/memmap.c +++ b/src/mainboard/emulation/qemu-q35/memmap.c @@ -78,6 +78,12 @@ void smm_lock(void) */ printk(BIOS_DEBUG, "Locking SMM.\n"); - pci_or_config8(PCI_DEV(0, 0, 0), ESMRAMC, T_EN); + if (CONFIG(SMM_TSEG)) + pci_or_config8(PCI_DEV(0, 0, 0), ESMRAMC, T_EN); pci_write_config8(PCI_DEV(0, 0, 0), SMRAMC, D_LCK | G_SMRAME | C_BASE_SEG); } + +void smm_open_aseg(void) +{ + pci_write_config8(PCI_DEV(0, 0, 0), SMRAMC, G_SMRAME | C_BASE_SEG | D_OPEN); +} |