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Re: [PATCH 0/3] hw/i386: Add MTD controller on ICH9
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From: |
Michael S. Tsirkin |
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Subject: |
Re: [PATCH 0/3] hw/i386: Add MTD controller on ICH9 |
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Date: |
Wed, 18 Oct 2023 09:47:40 -0400 |
On Wed, Oct 18, 2023 at 01:52:28PM +0200, Patrick Rudolph wrote:
> This series implements a feature complete MTD SPI flash controller
> as found on real ICH9, adds cache coherent BIOS MMAPing and implements
> a few SMM bits to allow x86 firmware build for real ICH9 to operate on
> the flash controller to store (UEFI) variables or do firmware updates.
>
> Patrick Rudolph (3):
> hw/isa/ich9: Add SPI controller
> hw/isa/lpc_ich9: Implement SMI_STS for APMC
> hw/i386/pc_sysfw: Do not create BIOS region if MTD is present
Given all this is guest-visible, one thing we need for sure is
a flag disabling this new stuff, and tied to existing machine types.
> hw/acpi/ich9.c | 5 +
> hw/acpi/ich9_tco.c | 5 +
> hw/i386/pc_sysfw.c | 6 +
> hw/isa/Kconfig | 2 +
> hw/isa/lpc_ich9.c | 4 +
> hw/isa/meson.build | 2 +-
> hw/isa/spi_ich9.c | 448 ++++++++++++++++++++++++++++++
> include/hw/southbridge/ich9.h | 6 +
> include/hw/southbridge/ich9_spi.h | 80 ++++++
> 9 files changed, 557 insertions(+), 1 deletion(-)
> create mode 100644 hw/isa/spi_ich9.c
> create mode 100644 include/hw/southbridge/ich9_spi.h
>
> --
> 2.41.0