diff options
| author | Laszlo Ersek <lersek@redhat.com> | 2020-02-26 23:11:46 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-03-04 12:22:07 +0000 |
| commit | 17efae27acaf00856ef648d85e4656bce5cc6bcd (patch) | |
| tree | 8a7b6254c3b59fb291cd8f58b8e9e89e8ab78f68 /OvmfPkg/OvmfPkgIa32X64.fdf | |
| parent | 49df3fcee13a7e84ac88422126e38d55bc34c6c7 (diff) | |
| download | edk2-17efae27acaf00856ef648d85e4656bce5cc6bcd.tar.gz | |
OvmfPkg/CpuHotplugSmm: introduce skeleton for CPU Hotplug SMM driver
Add a new SMM driver skeleton that registers a root SMI handler, and
checks if the SMI control value (written to 0xB2) indicates a CPU hotplug
SMI.
QEMU's ACPI payload will cause the OS to raise a broadcast SMI when a CPU
hotplug event occurs, namely by writing value 4 to IO Port 0xB2. In other
words, control value 4 is now allocated for this purpose; introduce the
ICH9_APM_CNT_CPU_HOTPLUG macro for it.
The standard identifiers in this driver use the new MM (Management Mode)
terminology from the PI spec, not the earlier SMM (System Management Mode)
terms.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1512
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200226221156.29589-7-lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'OvmfPkg/OvmfPkgIa32X64.fdf')
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32X64.fdf | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/OvmfPkg/OvmfPkgIa32X64.fdf b/OvmfPkg/OvmfPkgIa32X64.fdf index d67d336876..c21c3b92d8 100644 --- a/OvmfPkg/OvmfPkgIa32X64.fdf +++ b/OvmfPkg/OvmfPkgIa32X64.fdf @@ -329,6 +329,7 @@ INF OvmfPkg/SmmControl2Dxe/SmmControl2Dxe.inf INF UefiCpuPkg/CpuS3DataDxe/CpuS3DataDxe.inf
INF MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf
INF MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+INF OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf
INF UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
INF MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.inf
INF UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
|