diff options
Diffstat (limited to 'x86_64/src/lib.rs')
| -rw-r--r-- | x86_64/src/lib.rs | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/x86_64/src/lib.rs b/x86_64/src/lib.rs index a912edd..a4ba444 100644 --- a/x86_64/src/lib.rs +++ b/x86_64/src/lib.rs @@ -189,7 +189,15 @@ const CMDLINE_OFFSET: u64 = 0x20000; const CMDLINE_MAX_SIZE: u64 = KERNEL_START_OFFSET - CMDLINE_OFFSET; const X86_64_SERIAL_1_3_IRQ: u32 = 4; const X86_64_SERIAL_2_4_IRQ: u32 = 3; -const X86_64_IRQ_BASE: u32 = 5; +// X86_64_SCI_IRQ is used to fill the ACPI FACP table. +// The sci_irq number is better to be a legacy +// IRQ number which is less than 16(actually most of the +// platforms have fixed IRQ number 9). So we can +// reserve the IRQ number 5 for SCI and let the +// the other devices starts from next. +pub const X86_64_SCI_IRQ: u32 = 5; +// So the IRQ_BASE start from SCI_IRQ + 1 +pub const X86_64_IRQ_BASE: u32 = X86_64_SCI_IRQ + 1; const ACPI_HI_RSDP_WINDOW_BASE: u64 = 0x000E0000; fn configure_system( @@ -203,7 +211,6 @@ fn configure_system( setup_data: Option<GuestAddress>, initrd: Option<(GuestAddress, usize)>, mut params: boot_params, - sci_irq: u32, ) -> Result<()> { const EBDA_START: u64 = 0x0009fc00; const KERNEL_BOOT_FLAG_MAGIC: u16 = 0xaa55; @@ -267,7 +274,7 @@ fn configure_system( .write_obj_at_addr(params, zero_page_addr) .map_err(|_| Error::ZeroPageSetup)?; - let rsdp_addr = acpi::create_acpi_tables(guest_mem, num_cpus, sci_irq); + let rsdp_addr = acpi::create_acpi_tables(guest_mem, num_cpus, X86_64_SCI_IRQ); params.acpi_rsdp_addr = rsdp_addr.0; Ok(()) @@ -404,8 +411,6 @@ impl arch::LinuxArch for X8664arch { // Event used to notify crosvm that guest OS is trying to suspend. let suspend_evt = EventFd::new().map_err(Error::CreateEventFd)?; - // allocate sci_irq to fill the ACPI FACP table - let sci_irq = resources.allocate_irq().ok_or(Error::AllocateIrq)?; let mut io_bus = Self::setup_io_bus( &mut vm, @@ -492,7 +497,6 @@ impl arch::LinuxArch for X8664arch { components.android_fstab, kernel_end, params, - sci_irq, )?; } } @@ -579,7 +583,6 @@ impl X8664arch { android_fstab: Option<File>, kernel_end: u64, params: boot_params, - sci_irq: u32, ) -> Result<()> { kernel_loader::load_cmdline(mem, GuestAddress(CMDLINE_OFFSET), cmdline) .map_err(Error::LoadCmdline)?; @@ -641,7 +644,6 @@ impl X8664arch { setup_data, initrd, params, - sci_irq, )?; Ok(()) } @@ -723,7 +725,7 @@ impl X8664arch { let tty_string = get_serial_tty_string(stdio_serial_num); cmdline.insert("console", &tty_string).unwrap(); } - cmdline.insert_str("acpi=off reboot=k panic=-1").unwrap(); + cmdline.insert_str("pci=noacpi reboot=k panic=-1").unwrap(); cmdline } |