summaryrefslogtreecommitdiffstats
path: root/qemu/roms/seabios/src/resume.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/seabios/src/resume.c')
-rw-r--r--qemu/roms/seabios/src/resume.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/qemu/roms/seabios/src/resume.c b/qemu/roms/seabios/src/resume.c
deleted file mode 100644
index a5465d877..000000000
--- a/qemu/roms/seabios/src/resume.c
+++ /dev/null
@@ -1,161 +0,0 @@
-// Code for handling calls to "post" that are resume related.
-//
-// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "bregs.h" // struct bregs
-#include "config.h" // CONFIG_*
-#include "farptr.h" // FLATPTR_TO_SEGOFF
-#include "hw/pci.h" // pci_reboot
-#include "hw/pic.h" // pic_eoi2
-#include "hw/ps2port.h" // i8042_reboot
-#include "hw/rtc.h" // rtc_read
-#include "output.h" // dprintf
-#include "stacks.h" // farcall16big
-#include "std/bda.h" // struct bios_data_area_s
-#include "string.h" // memset
-#include "util.h" // dma_setup
-#include "tcgbios.h" // tpm_s3_resume
-
-// Handler for post calls that look like a resume.
-void VISIBLE16
-handle_resume(void)
-{
- ASSERT16();
- int status = rtc_read(CMOS_RESET_CODE);
- rtc_write(CMOS_RESET_CODE, 0);
- dprintf(1, "In resume (status=%d)\n", status);
-
- dma_setup();
-
- switch (status) {
- case 0x01 ... 0x04:
- case 0x06 ... 0x09:
- panic("Unimplemented shutdown status: %02x\n", status);
-
- case 0x05:
- // flush keyboard (issue EOI) and jump via 40h:0067h
- pic_eoi2();
- // NO BREAK
- case 0x0a:
-#define BDA_JUMP (((struct bios_data_area_s *)0)->jump)
- // resume execution by jump via 40h:0067h
- asm volatile(
- "movw %w1, %%ds\n"
- "ljmpw *%0\n"
- : : "m"(BDA_JUMP), "r"(SEG_BDA)
- );
- break;
-
- case 0x0b:
- // resume execution via IRET via 40h:0067h
- asm volatile(
- "movw %w1, %%ds\n"
- "lssw %0, %%sp\n"
- "iretw\n"
- : : "m"(BDA_JUMP), "r"(SEG_BDA)
- );
- break;
-
- case 0x0c:
- // resume execution via RETF via 40h:0067h
- asm volatile(
- "movw %w1, %%ds\n"
- "lssw %0, %%sp\n"
- "lretw\n"
- : : "m"(BDA_JUMP), "r"(SEG_BDA)
- );
- break;
-
- default:
- break;
- }
-
- // Not a 16bit resume - do remaining checks in 32bit mode
- asm volatile(
- "movw %w1, %%ss\n"
- "movl %0, %%esp\n"
- "movl $_cfunc32flat_handle_resume32, %%edx\n"
- "jmp transition32\n"
- : : "i"(BUILD_S3RESUME_STACK_ADDR), "r"(0), "a"(status)
- );
-}
-
-// Handle an S3 resume event
-static void
-s3_resume(void)
-{
- if (!CONFIG_S3_RESUME)
- return;
-
- u32 s3_resume_vector = find_resume_vector();
- if (!s3_resume_vector) {
- dprintf(1, "No resume vector set!\n");
- return;
- }
-
- pic_setup();
- smm_setup();
-
- pci_resume();
-
- /* resume TPM before we may measure option roms */
- tpm_s3_resume();
- s3_resume_vga();
-
- make_bios_readonly();
-
- // Invoke the resume vector.
- struct bregs br;
- memset(&br, 0, sizeof(br));
- dprintf(1, "Jump to resume vector (%x)\n", s3_resume_vector);
- br.code = FLATPTR_TO_SEGOFF((void*)s3_resume_vector);
- farcall16big(&br);
-}
-
-u8 HaveAttemptedReboot VARLOW;
-
-// Attempt to invoke a hard-reboot.
-static void
-tryReboot(void)
-{
- if (HaveAttemptedReboot) {
- // Hard reboot has failed - try to shutdown machine.
- dprintf(1, "Unable to hard-reboot machine - attempting shutdown.\n");
- apm_shutdown();
- }
- HaveAttemptedReboot = 1;
-
- dprintf(1, "Attempting a hard reboot\n");
-
- // Setup for reset on qemu.
- qemu_prep_reset();
-
- // Reboot using ACPI RESET_REG
- acpi_reboot();
-
- // Try keyboard controller reboot.
- i8042_reboot();
-
- // Try PCI 0xcf9 reboot
- pci_reboot();
-
- // Try triple fault
- asm volatile("int3");
-
- panic("Could not reboot");
-}
-
-void VISIBLE32FLAT
-handle_resume32(int status)
-{
- ASSERT32FLAT();
- dprintf(1, "In 32bit resume\n");
-
- if (status == 0xfe)
- s3_resume();
-
- // Must be a soft reboot - invoke a hard reboot.
- tryReboot();
-}