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| author | Chuanxiao Dong <chuanxiao.dong@intel.corp-partner.google.com> | 2020-02-27 13:58:26 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-28 00:11:19 +0000 |
| commit | 020fbf04c2ac112f34b87306b5fbb75e7a02a81a (patch) | |
| tree | 127111f64edbb95d7a2b6deceb414dfd24b8db39 /acpi_tables | |
| parent | 46d61ba80df1ccf8364d9589170b3a7bff1268ee (diff) | |
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x86_64: generate ACPI tables
Add acpi_rsdp_addr in boot_params to allow crosvm to pass a physicall address of RSDP to the Linux guest kernel, so that the linux guest kernel can parse the constructed ACPI tables and enable the ACPI. Although there is ACPI tables but as we still have "acpi=off" in command line parameter, there is still no ACPI in guest kernel. The ACPI construction refers to the implementation of the Cloud-hypervisor commit: - arch: x86_64: Generate basic ACPI tables BUG=chromium:1018674 TEST=None Change-Id: Ibcb2ae98c43da8ef8c07a07eda9213f61570d14c Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2035351 Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Tomasz Jeznach <tjeznach@chromium.org>
Diffstat (limited to 'acpi_tables')
| -rw-r--r-- | acpi_tables/src/lib.rs | 2 | ||||
| -rw-r--r-- | acpi_tables/src/sdt.rs | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/acpi_tables/src/lib.rs b/acpi_tables/src/lib.rs index 73dd9e8..49cf760 100644 --- a/acpi_tables/src/lib.rs +++ b/acpi_tables/src/lib.rs @@ -5,6 +5,8 @@ pub mod rsdp; pub mod sdt; +pub use self::sdt::HEADER_LEN; + fn generate_checksum(data: &[u8]) -> u8 { (255 - data.iter().fold(0u8, |acc, x| acc.wrapping_add(*x))).wrapping_add(1) } diff --git a/acpi_tables/src/sdt.rs b/acpi_tables/src/sdt.rs index ca1133c..e8a9ea2 100644 --- a/acpi_tables/src/sdt.rs +++ b/acpi_tables/src/sdt.rs @@ -10,7 +10,7 @@ pub struct SDT { data: Vec<u8>, } -const HEADER_LEN: u32 = 36; +pub const HEADER_LEN: u32 = 36; const LENGTH_OFFSET: usize = 4; const CHECKSUM_OFFSET: usize = 9; |