| commit | fe6567d5fddfb7501a352c5e080a9eecf7b89177 | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Tue, 31 Mar 2015 12:10:22 +0000 (31 14:10 +0200) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Fri, 5 Jun 2015 15:36:39 +0000 (5 17:36 +0200) | ||
| tree | 218595cffdd4f6c5119d454ee99273987b290e76 | treesnapshot (tar.gz zip) |
| parent | 2001d0cd6d55e5efa9956fa8ff8b89034d6a4329 | commitdiff |
hw/i386: add a separate region that tracks the SMRAME bit
This region is exported at /machine/smram. It is "empty" if
SMRAME=0 and points to SMRAM if SMRAME=1. The CPU will
enable/disable it as it enters or exits SMRAM.
While touching nearby code, the existing memory region setup was
slightly inconsistent. The smram_region is *disabled* in order to open
SMRAM (because the smram_region shows the low VRAM instead of the RAM
at 0xa0000). Because SMRAM is closed at startup, the smram_region must
be enabled when creating the i440fx or q35 devices.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This region is exported at /machine/smram. It is "empty" if
SMRAME=0 and points to SMRAM if SMRAME=1. The CPU will
enable/disable it as it enters or exits SMRAM.
While touching nearby code, the existing memory region setup was
slightly inconsistent. The smram_region is *disabled* in order to open
SMRAM (because the smram_region shows the low VRAM instead of the RAM
at 0xa0000). Because SMRAM is closed at startup, the smram_region must
be enabled when creating the i440fx or q35 devices.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| hw/pci-host/piix.c | diffblobblamehistory | |
| hw/pci-host/q35.c | diffblobblamehistory | |
| include/hw/pci-host/q35.h | diffblobblamehistory |