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x86: mtrr: Update the command to use the new mtrr calls

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Use the multi-CPU calls to set the MTRR values. This still supports only
the boot CPU for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2020-07-17 08:48:27 -06:00 committed by Bin Meng
parent 8dda2baa97
commit e68b12805b
1 changed files with 8 additions and 26 deletions
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34
cmd/x86/mtrr.c
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@ -59,14 +59,14 @@ static int do_mtrr_list(int cpu_select)
return 0;
}
static int do_mtrr_set(uint reg, int argc, char *const argv[])
static int do_mtrr_set(int cpu_select, uint reg, int argc, char *const argv[])
{
const char *typename = argv[0];
struct mtrr_state state;
uint32_t start, size;
uint64_t base, mask;
int i, type = -1;
bool valid;
int ret;
if (argc < 3)
return CMD_RET_USAGE;
@ -88,27 +88,9 @@ static int do_mtrr_set(uint reg, int argc, char *const argv[])
if (valid)
mask |= MTRR_PHYS_MASK_VALID;
mtrr_open(&state, true);
wrmsrl(MTRR_PHYS_BASE_MSR(reg), base);
wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask);
mtrr_close(&state, true);
return 0;
}
static int mtrr_set_valid_(int reg, bool valid)
{
struct mtrr_state state;
uint64_t mask;
mtrr_open(&state, true);
mask = native_read_msr(MTRR_PHYS_MASK_MSR(reg));
if (valid)
mask |= MTRR_PHYS_MASK_VALID;
else
mask &= ~MTRR_PHYS_MASK_VALID;
wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask);
mtrr_close(&state, true);
ret = mtrr_set(cpu_select, reg, base, mask);
if (ret)
return CMD_RET_FAILURE;
return 0;
}
@ -134,11 +116,11 @@ static int do_mtrr(struct cmd_tbl *cmdtp, int flag, int argc,
return CMD_RET_USAGE;
}
if (*cmd == 'e')
return mtrr_set_valid_(reg, true);
return mtrr_set_valid(cpu_select, reg, true);
else if (*cmd == 'd')
return mtrr_set_valid_(reg, false);
return mtrr_set_valid(cpu_select, reg, false);
else if (*cmd == 's')
return do_mtrr_set(reg, argc - 1, argv + 1);
return do_mtrr_set(cpu_select, reg, argc - 1, argv + 1);
else
return CMD_RET_USAGE;