[Qemu-devel] [PATCH v3 0/6] Support for S3 ACPI state (suspend to memory) in BIOS

[Gleb Natapov <gleb@redhat.com>]

Hello,

This patch series adds S3 (suspend to RAM) ACPI state to BIOS. Most
changes concern themselves with preventing BIOS from using memory
locations available to a guest OS.

Changelog:

v2:
- Don't disable SMM.
- Jump to resume vector ASAP. Don't execute entire POST.
- Use smp_cpus directly for smp initialization instead of special memory
  location.

v3:
- Stack pointer for rombios32 code depends on EBDA settings
- Fix .data and .rodata* section overlap
- Various small fixes

---

Gleb Natapov (6):
      Don't power down vga card on entering S3 state.
      Don't use unreserved memory in BIOS.
      Execute rombios32 code from rom address 0xe0000.
      Preserve memory content during SMM init.
      Add S3 state to DSDT. Handle resume event in the BIOS.
      Move PIC initialization out of line to save space in post code area.


 bios/Makefile.in      |    1 
 bios/acpi-dsdt.dsl    |   45 +++++-
 bios/acpi-dsdt.hex    |  376 +++++++++++++++++++++++++------------------------
 bios/rombios.c        |  121 ++++++++++------
 bios/rombios.h        |    1 
 bios/rombios32.c      |  100 +++++++++++--
 bios/rombios32.ld     |   10 +
 bios/rombios32start.S |   11 +
 8 files changed, 411 insertions(+), 254 deletions(-)

--
		Gleb.