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init_librm() and prot_call() are now real-mode far calls.

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install() now calls relocate(), moves the protected-mode code to the new
location, and calls hide_etherboot().
This commit is contained in:
Michael Brown
2006-05-25 00:06:45 +00:00
parent 4d81b48504
commit 89da833c5d
4 changed files with 120 additions and 90 deletions
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8
src/arch/i386/transitions/librm.S
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@@ -88,7 +88,7 @@ gdt_end:
.equ gdt_length, gdt_end - gdt
/****************************************************************************
* init_librm (real-mode near call, 16-bit real-mode return address)
* init_librm (real-mode far call, 16-bit real-mode far return address)
*
* Initialise the GDT ready for transitions to protected mode.
*
@@ -143,7 +143,7 @@ init_librm:
negl %edi
popl %ebx
popl %eax
ret
lret
.section ".text16"
.code16
@@ -316,7 +316,7 @@ rm_cs: .word 0
rm_ds: .word 0
/****************************************************************************
* prot_call (real-mode near call, 32-bit real-mode return address)
* prot_call (real-mode far call, 16-bit real-mode far return address)
*
* Call a specific C function in the protected-mode code. The
* prototype of the C function must be
@@ -405,7 +405,7 @@ prot_call:
* zeroes the high word of %esp, and interrupts
* are still disabled at this point. */
popfl
data32 ret
lret
/****************************************************************************
* real_call (protected-mode near call, 32-bit virtual return address)