Add QemuCpuhpWriteCpuStatus() which will be used to update the QEMU CPU status register. On error, it hangs in a similar fashion as other helper functions.
Cc: Laszlo Ersek <ler...@redhat.com> Cc: Jordan Justen <jordan.l.jus...@intel.com> Cc: Ard Biesheuvel <ard.biesheu...@arm.com> Cc: Igor Mammedov <imamm...@redhat.com> Cc: Boris Ostrovsky <boris.ostrov...@oracle.com> Cc: Aaron Young <aaron.yo...@oracle.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3132 Signed-off-by: Ankur Arora <ankur.a.ar...@oracle.com> Reviewed-by: Laszlo Ersek <ler...@redhat.com> --- OvmfPkg/CpuHotplugSmm/QemuCpuhp.h | 6 ++++++ OvmfPkg/CpuHotplugSmm/QemuCpuhp.c | 22 ++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/OvmfPkg/CpuHotplugSmm/QemuCpuhp.h b/OvmfPkg/CpuHotplugSmm/QemuCpuhp.h index 3e2c2192e1c0..8bb3c66e9b44 100644 --- a/OvmfPkg/CpuHotplugSmm/QemuCpuhp.h +++ b/OvmfPkg/CpuHotplugSmm/QemuCpuhp.h @@ -42,6 +42,12 @@ QemuCpuhpWriteCpuSelector ( ); VOID +QemuCpuhpWriteCpuStatus ( + IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo, + IN UINT8 CpuStatus + ); + +VOID QemuCpuhpWriteCommand ( IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo, IN UINT8 Command diff --git a/OvmfPkg/CpuHotplugSmm/QemuCpuhp.c b/OvmfPkg/CpuHotplugSmm/QemuCpuhp.c index 8434dd446b96..dc86ab96777a 100644 --- a/OvmfPkg/CpuHotplugSmm/QemuCpuhp.c +++ b/OvmfPkg/CpuHotplugSmm/QemuCpuhp.c @@ -114,6 +114,28 @@ QemuCpuhpWriteCpuSelector ( } VOID +QemuCpuhpWriteCpuStatus ( + IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo, + IN UINT8 CpuStatus + ) +{ + EFI_STATUS Status; + + Status = MmCpuIo->Io.Write ( + MmCpuIo, + MM_IO_UINT8, + ICH9_CPU_HOTPLUG_BASE + QEMU_CPUHP_R_CPU_STAT, + 1, + &CpuStatus + ); + if (EFI_ERROR (Status)) { + DEBUG ((DEBUG_ERROR, "%a: %r\n", __FUNCTION__, Status)); + ASSERT (FALSE); + CpuDeadLoop (); + } +} + +VOID QemuCpuhpWriteCommand ( IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo, IN UINT8 Command -- 2.9.3 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#72705): https://edk2.groups.io/g/devel/message/72705 Mute This Topic: https://groups.io/mt/81273604/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
