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Merge branches 'x86/early-printk', 'x86/microcode' and 'core/objtool' into x86/urgent, to pick up simple topic branches

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Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
2018-10-29 07:13:09 +01:00
parent 97ec37c57d d2266bbfa9 f4661d293e 4a60aa05a0
commit 4b783dd6a4
7 changed files with 63 additions and 22 deletions
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4
arch/x86/kernel/cpu/microcode/core.c
View File

@@ -666,8 +666,8 @@ static ssize_t pf_show(struct device *dev,
}
static DEVICE_ATTR_WO(reload);
static DEVICE_ATTR(version, 0400, version_show, NULL);
static DEVICE_ATTR(processor_flags, 0400, pf_show, NULL);
static DEVICE_ATTR(version, 0444, version_show, NULL);
static DEVICE_ATTR(processor_flags, 0444, pf_show, NULL);
static struct attribute *mc_default_attrs[] = {
&dev_attr_version.attr,

29
arch/x86/kernel/early_printk.c
View File

@@ -213,8 +213,9 @@ static unsigned int mem32_serial_in(unsigned long addr, int offset)
* early_pci_serial_init()
*
* This function is invoked when the early_printk param starts with "pciserial"
* The rest of the param should be ",B:D.F,baud" where B, D & F describe the
* location of a PCI device that must be a UART device.
* The rest of the param should be "[force],B:D.F,baud", where B, D & F describe
* the location of a PCI device that must be a UART device. "force" is optional
* and overrides the use of an UART device with a wrong PCI class code.
*/
static __init void early_pci_serial_init(char *s)
{
@@ -224,17 +225,23 @@ static __init void early_pci_serial_init(char *s)
u32 classcode, bar0;
u16 cmdreg;
char *e;
int force = 0;
/*
* First, part the param to get the BDF values
*/
if (*s == ',')
++s;
if (*s == 0)
return;
/* Force the use of an UART device with wrong class code */
if (!strncmp(s, "force,", 6)) {
force = 1;
s += 6;
}
/*
* Part the param to get the BDF values
*/
bus = (u8)simple_strtoul(s, &e, 16);
s = e;
if (*s != ':')
@@ -253,7 +260,7 @@ static __init void early_pci_serial_init(char *s)
s++;
/*
* Second, find the device from the BDF
* Find the device from the BDF
*/
cmdreg = read_pci_config(bus, slot, func, PCI_COMMAND);
classcode = read_pci_config(bus, slot, func, PCI_CLASS_REVISION);
@@ -264,8 +271,10 @@ static __init void early_pci_serial_init(char *s)
*/
if (((classcode >> 16 != PCI_CLASS_COMMUNICATION_MODEM) &&
(classcode >> 16 != PCI_CLASS_COMMUNICATION_SERIAL)) ||
(((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */
return;
(((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */ {
if (!force)
return;
}
/*
* Determine if it is IO or memory mapped
@@ -289,7 +298,7 @@ static __init void early_pci_serial_init(char *s)
}
/*
* Lastly, initialize the hardware
* Initialize the hardware
*/
if (*s) {
if (strcmp(s, "nocfg") == 0)