122028508SToomas Soome /*
222028508SToomas Soome * This file and its contents are supplied under the terms of the
322028508SToomas Soome * Common Development and Distribution License ("CDDL"), version 1.0.
422028508SToomas Soome * You may only use this file in accordance with the terms of version
522028508SToomas Soome * 1.0 of the CDDL.
622028508SToomas Soome *
722028508SToomas Soome * A full copy of the text of the CDDL should have accompanied this
822028508SToomas Soome * source. A copy of the CDDL is also available via the Internet at
922028508SToomas Soome * http://www.illumos.org/license/CDDL.
1022028508SToomas Soome */
1122028508SToomas Soome
1222028508SToomas Soome /*
1322028508SToomas Soome * Copyright 2016 Toomas Soome <tsoome@me.com>
1422028508SToomas Soome */
1522028508SToomas Soome
1622028508SToomas Soome /*
1722028508SToomas Soome * Build smap like memory map from efi memmap.
1822028508SToomas Soome */
1922028508SToomas Soome
2022028508SToomas Soome #include <stand.h>
2122028508SToomas Soome #include <inttypes.h>
2222028508SToomas Soome #include <efi.h>
2322028508SToomas Soome #include <efilib.h>
2422028508SToomas Soome #include <sys/param.h>
2522028508SToomas Soome #include <sys/linker.h>
2622028508SToomas Soome #include <sys/queue.h>
2722028508SToomas Soome #include <sys/stddef.h>
2822028508SToomas Soome #include <machine/metadata.h>
2922028508SToomas Soome #include <machine/pc/bios.h>
3022028508SToomas Soome #include "bootstrap.h"
3122028508SToomas Soome
3222028508SToomas Soome struct smap_buf {
3322028508SToomas Soome struct bios_smap sb_smap;
3422028508SToomas Soome STAILQ_ENTRY(smap_buf) sb_bufs;
3522028508SToomas Soome };
3622028508SToomas Soome
3722028508SToomas Soome static struct bios_smap *smapbase;
3822028508SToomas Soome static int smaplen;
3922028508SToomas Soome
4022028508SToomas Soome /*
4122028508SToomas Soome * See ACPI 6.1 Table 15-330 UEFI Memory Types and mapping to ACPI address
4222028508SToomas Soome * range types.
4322028508SToomas Soome */
4422028508SToomas Soome static int
smap_type(int type)4522028508SToomas Soome smap_type(int type)
4622028508SToomas Soome {
4722028508SToomas Soome switch (type) {
4822028508SToomas Soome case EfiLoaderCode:
4922028508SToomas Soome case EfiLoaderData:
5022028508SToomas Soome case EfiBootServicesCode:
5122028508SToomas Soome case EfiBootServicesData:
5222028508SToomas Soome case EfiConventionalMemory:
5322028508SToomas Soome return (SMAP_TYPE_MEMORY);
5422028508SToomas Soome case EfiReservedMemoryType:
5522028508SToomas Soome case EfiRuntimeServicesCode:
5622028508SToomas Soome case EfiRuntimeServicesData:
5722028508SToomas Soome case EfiMemoryMappedIO:
5822028508SToomas Soome case EfiMemoryMappedIOPortSpace:
5922028508SToomas Soome case EfiPalCode:
6022028508SToomas Soome case EfiUnusableMemory:
6122028508SToomas Soome return (SMAP_TYPE_RESERVED);
6222028508SToomas Soome case EfiACPIReclaimMemory:
6322028508SToomas Soome return (SMAP_TYPE_ACPI_RECLAIM);
6422028508SToomas Soome case EfiACPIMemoryNVS:
6522028508SToomas Soome return (SMAP_TYPE_ACPI_NVS);
6622028508SToomas Soome }
6722028508SToomas Soome return (SMAP_TYPE_RESERVED);
6822028508SToomas Soome }
6922028508SToomas Soome
7022028508SToomas Soome void
efi_getsmap(void)7122028508SToomas Soome efi_getsmap(void)
7222028508SToomas Soome {
7322028508SToomas Soome UINTN size, desc_size, key;
7422028508SToomas Soome EFI_MEMORY_DESCRIPTOR *efi_mmap, *p;
7522028508SToomas Soome EFI_PHYSICAL_ADDRESS addr;
7622028508SToomas Soome EFI_STATUS status;
7722028508SToomas Soome STAILQ_HEAD(smap_head, smap_buf) head =
7822028508SToomas Soome STAILQ_HEAD_INITIALIZER(head);
7922028508SToomas Soome struct smap_buf *cur, *next;
8022028508SToomas Soome int i, n, ndesc;
8122028508SToomas Soome int type = -1;
8222028508SToomas Soome
8322028508SToomas Soome size = 0;
8422028508SToomas Soome efi_mmap = NULL;
8522028508SToomas Soome status = BS->GetMemoryMap(&size, efi_mmap, &key, &desc_size, NULL);
8622028508SToomas Soome efi_mmap = malloc(size);
8722028508SToomas Soome status = BS->GetMemoryMap(&size, efi_mmap, &key, &desc_size, NULL);
8822028508SToomas Soome if (EFI_ERROR(status)) {
89*f334afcfSToomas Soome printf("GetMemoryMap: error %lu\n", DECODE_ERROR(status));
9022028508SToomas Soome free(efi_mmap);
9122028508SToomas Soome return;
9222028508SToomas Soome }
9322028508SToomas Soome
9422028508SToomas Soome STAILQ_INIT(&head);
9522028508SToomas Soome n = 0;
9622028508SToomas Soome i = 0;
9722028508SToomas Soome p = efi_mmap;
9822028508SToomas Soome next = NULL;
9922028508SToomas Soome ndesc = size / desc_size;
10022028508SToomas Soome while (i < ndesc) {
10122028508SToomas Soome if (next == NULL) {
10222028508SToomas Soome next = malloc(sizeof (*next));
10322028508SToomas Soome if (next == NULL)
10422028508SToomas Soome break;
10522028508SToomas Soome
10622028508SToomas Soome next->sb_smap.base = p->PhysicalStart;
10722028508SToomas Soome next->sb_smap.length =
10822028508SToomas Soome p->NumberOfPages << EFI_PAGE_SHIFT;
10922028508SToomas Soome /*
11022028508SToomas Soome * ACPI 6.1 tells the lower memory should be
11122028508SToomas Soome * reported as normal memory, so we enforce
11222028508SToomas Soome * page 0 type even as vmware maps it as
11322028508SToomas Soome * acpi reclaimable.
11422028508SToomas Soome */
11522028508SToomas Soome if (next->sb_smap.base == 0)
11622028508SToomas Soome type = SMAP_TYPE_MEMORY;
11722028508SToomas Soome else
11822028508SToomas Soome type = smap_type(p->Type);
11922028508SToomas Soome next->sb_smap.type = type;
12022028508SToomas Soome
12122028508SToomas Soome STAILQ_INSERT_TAIL(&head, next, sb_bufs);
12222028508SToomas Soome n++;
12322028508SToomas Soome p = NextMemoryDescriptor(p, desc_size);
12422028508SToomas Soome i++;
12522028508SToomas Soome continue;
12622028508SToomas Soome }
12722028508SToomas Soome addr = next->sb_smap.base + next->sb_smap.length;
12822028508SToomas Soome if ((smap_type(p->Type) == type) &&
12922028508SToomas Soome (p->PhysicalStart == addr)) {
13022028508SToomas Soome next->sb_smap.length +=
13122028508SToomas Soome (p->NumberOfPages << EFI_PAGE_SHIFT);
13222028508SToomas Soome p = NextMemoryDescriptor(p, desc_size);
13322028508SToomas Soome i++;
13422028508SToomas Soome } else
13522028508SToomas Soome next = NULL;
13622028508SToomas Soome }
13722028508SToomas Soome smaplen = n;
13822028508SToomas Soome if (smaplen > 0) {
13922028508SToomas Soome smapbase = malloc(smaplen * sizeof (*smapbase));
14022028508SToomas Soome if (smapbase != NULL) {
14122028508SToomas Soome n = 0;
14222028508SToomas Soome STAILQ_FOREACH(cur, &head, sb_bufs)
14322028508SToomas Soome smapbase[n++] = cur->sb_smap;
14422028508SToomas Soome }
14522028508SToomas Soome cur = STAILQ_FIRST(&head);
14622028508SToomas Soome while (cur != NULL) {
14722028508SToomas Soome next = STAILQ_NEXT(cur, sb_bufs);
14822028508SToomas Soome free(cur);
14922028508SToomas Soome cur = next;
15022028508SToomas Soome }
15122028508SToomas Soome }
15222028508SToomas Soome free(efi_mmap);
15322028508SToomas Soome }
15422028508SToomas Soome
15522028508SToomas Soome void
efi_addsmapdata(struct preloaded_file * kfp)15622028508SToomas Soome efi_addsmapdata(struct preloaded_file *kfp)
15722028508SToomas Soome {
15822028508SToomas Soome size_t size;
15922028508SToomas Soome
16022028508SToomas Soome if (smapbase == NULL || smaplen == 0)
16122028508SToomas Soome return;
16222028508SToomas Soome size = smaplen * sizeof (*smapbase);
16322028508SToomas Soome file_addmetadata(kfp, MODINFOMD_SMAP, size, smapbase);
16422028508SToomas Soome }
16522028508SToomas Soome
16622028508SToomas Soome COMMAND_SET(smap, "smap", "show BIOS SMAP", command_smap);
16722028508SToomas Soome
16822028508SToomas Soome static int
command_smap(int argc __unused,char * argv[]__unused)16922028508SToomas Soome command_smap(int argc __unused, char *argv[] __unused)
17022028508SToomas Soome {
171*f334afcfSToomas Soome uint_t i;
17222028508SToomas Soome
17322028508SToomas Soome if (smapbase == NULL || smaplen == 0)
17422028508SToomas Soome return (CMD_ERROR);
17522028508SToomas Soome
17622028508SToomas Soome for (i = 0; i < smaplen; i++)
17722028508SToomas Soome printf("SMAP type=%02" PRIx32 " base=%016" PRIx64
17822028508SToomas Soome " len=%016" PRIx64 "\n", smapbase[i].type,
17922028508SToomas Soome smapbase[i].base, smapbase[i].length);
18022028508SToomas Soome return (CMD_OK);
18122028508SToomas Soome }
182