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Utilize pmap.h names for constants and types used to construct EFI

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trampoline page table.  Also do some style cleanup.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D7934
This commit is contained in:
Konstantin Belousov 2016-09-18 17:41:16 +00:00
parent 944e0bab86
commit 7d144ba6dc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=305943
1 changed files with 18 additions and 18 deletions
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36
sys/boot/efi/loader/arch/amd64/elf64_freebsd.c
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@ -35,6 +35,8 @@ __FBSDID("$FreeBSD$");
#include <string.h>
#include <machine/elf.h>
#include <stand.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <efi.h>
#include <efilib.h>
@ -57,8 +59,14 @@ extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp);
static int elf64_exec(struct preloaded_file *amp);
static int elf64_obj_exec(struct preloaded_file *amp);
static struct file_format amd64_elf = { elf64_loadfile, elf64_exec };
static struct file_format amd64_elf_obj = { elf64_obj_loadfile, elf64_obj_exec };
static struct file_format amd64_elf = {
.l_load = elf64_loadfile,
.l_exec = elf64_exec,
};
static struct file_format amd64_elf_obj = {
.l_load = elf64_obj_loadfile,
.l_exec = elf64_obj_exec,
};
struct file_format *file_formats[] = {
&amd64_elf,
@ -66,21 +74,12 @@ struct file_format *file_formats[] = {
NULL
};
#define PG_V 0x001
#define PG_RW 0x002
#define PG_U 0x004
#define PG_PS 0x080
typedef u_int64_t p4_entry_t;
typedef u_int64_t p3_entry_t;
typedef u_int64_t p2_entry_t;
static p4_entry_t *PT4;
static p3_entry_t *PT3;
static p2_entry_t *PT2;
static pml4_entry_t *PT4;
static pdp_entry_t *PT3;
static pd_entry_t *PT2;
static void (*trampoline)(uint64_t stack, void *copy_finish, uint64_t kernend,
uint64_t modulep, p4_entry_t *pagetable,
uint64_t entry);
uint64_t modulep, pml4_entry_t *pagetable, uint64_t entry);
extern uintptr_t amd64_tramp;
extern uint32_t amd64_tramp_size;
@ -157,7 +156,7 @@ elf64_exec(struct preloaded_file *fp)
bcopy((void *)&amd64_tramp, (void *)trampcode, amd64_tramp_size);
trampoline = (void *)trampcode;
PT4 = (p4_entry_t *)0x0000000040000000;
PT4 = (pml4_entry_t *)0x0000000040000000;
err = BS->AllocatePages(AllocateMaxAddress, EfiLoaderData, 3,
(EFI_PHYSICAL_ADDRESS *)&PT4);
bzero(PT4, 3 * EFI_PAGE_SIZE);
@ -172,11 +171,11 @@ elf64_exec(struct preloaded_file *fp)
*/
for (i = 0; i < 512; i++) {
/* Each slot of the L4 pages points to the same L3 page. */
PT4[i] = (p4_entry_t)PT3;
PT4[i] = (pml4_entry_t)PT3;
PT4[i] |= PG_V | PG_RW | PG_U;
/* Each slot of the L3 pages points to the same L2 page. */
PT3[i] = (p3_entry_t)PT2;
PT3[i] = (pdp_entry_t)PT2;
PT3[i] |= PG_V | PG_RW | PG_U;
/* The L2 page slots are mapped with 2MB pages for 1GB. */
@ -204,5 +203,6 @@ elf64_exec(struct preloaded_file *fp)
static int
elf64_obj_exec(struct preloaded_file *fp)
{
return (EFTYPE);
}