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authorNico Huber <nico.h@gmx.de>2020-07-18 14:54:47 +0200
committerPatrick Georgi <pgeorgi@google.com>2020-08-24 09:13:09 +0000
commitbe842cb72d83b347bbc1c3308909f4eac286b47a (patch)
treee682a6fad4ad45d5764815b2f4754513be0c2c0d /payloads/libpayload
parentb2eafa666cb7f5318daa61962bae62859f4e4e88 (diff)
downloadcoreboot-be842cb72d83b347bbc1c3308909f4eac286b47a.tar.xz
libpayload: Cache physical location of serial-console struct
In the presence of self-relocating payloads, it's safer to keep physical addresses in `libsysinfo`. Change-Id: Icd30e95c6b8115d16dd793914fb01a1a9da1854f Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43577 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'payloads/libpayload')
-rw-r--r--payloads/libpayload/drivers/serial/8250.c4
-rw-r--r--payloads/libpayload/drivers/serial/ipq40xx.c4
-rw-r--r--payloads/libpayload/drivers/serial/ipq806x.c4
-rw-r--r--payloads/libpayload/drivers/serial/qcom_qupv3_serial.c5
-rw-r--r--payloads/libpayload/drivers/serial/qcs405.c4
-rw-r--r--payloads/libpayload/drivers/serial/s5p.c6
-rw-r--r--payloads/libpayload/include/sysinfo.h4
-rw-r--r--payloads/libpayload/libc/coreboot.c2
8 files changed, 16 insertions, 17 deletions
diff --git a/payloads/libpayload/drivers/serial/8250.c b/payloads/libpayload/drivers/serial/8250.c
index b0e9d03c20..1df34c41ea 100644
--- a/payloads/libpayload/drivers/serial/8250.c
+++ b/payloads/libpayload/drivers/serial/8250.c
@@ -132,9 +132,9 @@ void serial_init(void)
void serial_console_init(void)
{
- if (!lib_sysinfo.serial)
+ if (!lib_sysinfo.cb_serial)
return;
- cb_serial = *lib_sysinfo.serial;
+ cb_serial = *(struct cb_serial *)phys_to_virt(lib_sysinfo.cb_serial);
serial_init();
diff --git a/payloads/libpayload/drivers/serial/ipq40xx.c b/payloads/libpayload/drivers/serial/ipq40xx.c
index 5a9079b46b..bc5ebbbc1b 100644
--- a/payloads/libpayload/drivers/serial/ipq40xx.c
+++ b/payloads/libpayload/drivers/serial/ipq40xx.c
@@ -553,9 +553,7 @@ static struct console_output_driver consout = {};
/* For simplicity's sake, let's rely on coreboot initializing the UART. */
void serial_console_init(void)
{
- struct cb_serial *sc_ptr = lib_sysinfo.serial;
-
- if (!sc_ptr)
+ if (!lib_sysinfo.cb_serial)
return;
consin.havekey = serial_havechar;
diff --git a/payloads/libpayload/drivers/serial/ipq806x.c b/payloads/libpayload/drivers/serial/ipq806x.c
index ef4ce80849..93e2129185 100644
--- a/payloads/libpayload/drivers/serial/ipq806x.c
+++ b/payloads/libpayload/drivers/serial/ipq806x.c
@@ -343,9 +343,9 @@ int serial_getchar(void)
/* For simplicity's sake, let's rely on coreboot initializing the UART. */
void serial_console_init(void)
{
- struct cb_serial *sc_ptr = lib_sysinfo.serial;
+ struct cb_serial *sc_ptr = phys_to_virt(lib_sysinfo.cb_serial);
- if (!sc_ptr)
+ if (!lib_sysinfo.cb_serial)
return;
base_uart_addr = (void *) sc_ptr->baseaddr;
diff --git a/payloads/libpayload/drivers/serial/qcom_qupv3_serial.c b/payloads/libpayload/drivers/serial/qcom_qupv3_serial.c
index 3d0e6de335..321ff46b42 100644
--- a/payloads/libpayload/drivers/serial/qcom_qupv3_serial.c
+++ b/payloads/libpayload/drivers/serial/qcom_qupv3_serial.c
@@ -275,7 +275,8 @@ static struct console_output_driver consout = {
static struct qup_regs *uart_base_address(void)
{
- return (void *)(uintptr_t)lib_sysinfo.serial->baseaddr;
+ const struct cb_serial *const serial = phys_to_virt(lib_sysinfo.cb_serial);
+ return phys_to_virt(serial->baseaddr);
}
static void uart_qupv3_tx_flush(void)
@@ -332,7 +333,7 @@ int serial_getchar(void)
void serial_console_init(void)
{
- if (!lib_sysinfo.serial)
+ if (!lib_sysinfo.cb_serial)
return;
console_add_output_driver(&consout);
diff --git a/payloads/libpayload/drivers/serial/qcs405.c b/payloads/libpayload/drivers/serial/qcs405.c
index 1a7b9e901b..2ed6af1749 100644
--- a/payloads/libpayload/drivers/serial/qcs405.c
+++ b/payloads/libpayload/drivers/serial/qcs405.c
@@ -541,9 +541,9 @@ int serial_getchar(void)
/* For simplicity's sake, let's rely on coreboot initializing the UART. */
void serial_console_init(void)
{
- struct cb_serial *sc_ptr = lib_sysinfo.serial;
+ struct cb_serial *sc_ptr = phys_to_virt(lib_sysinfo.cb_serial);
- if (!sc_ptr)
+ if (!lib_sysinfo.cb_serial)
return;
uart_board_param.uart_dm_base = (void *)(uintptr_t)sc_ptr->baseaddr;
diff --git a/payloads/libpayload/drivers/serial/s5p.c b/payloads/libpayload/drivers/serial/s5p.c
index 6ca5dc4717..7a6f0e1c39 100644
--- a/payloads/libpayload/drivers/serial/s5p.c
+++ b/payloads/libpayload/drivers/serial/s5p.c
@@ -90,10 +90,12 @@ static struct console_input_driver s5p_serial_input =
void serial_init(void)
{
- if (!lib_sysinfo.serial || !lib_sysinfo.serial->baseaddr)
+ const struct cb_serial *const serial = phys_to_virt(lib_sysinfo.cb_serial);
+
+ if (!lib_sysinfo.cb_serial || !serial->baseaddr)
return;
- uart_regs = (struct s5p_uart *)lib_sysinfo.serial->baseaddr;
+ uart_regs = (struct s5p_uart *)serial->baseaddr;
}
void serial_console_init(void)
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index c3d8c7fd53..188b2c3ecf 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -41,8 +41,6 @@
#include <coreboot_tables.h>
-struct cb_serial;
-
/*
* All pointers in here shall be virtual.
*
@@ -51,7 +49,7 @@ struct cb_serial;
*/
struct sysinfo_t {
unsigned int cpu_khz;
- struct cb_serial *serial;
+ uintptr_t cb_serial;
unsigned short ser_ioport;
unsigned long ser_base; // for mmapped serial
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index cb47a8317b..5ecdd51fab 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -86,7 +86,7 @@ static void cb_parse_memory(void *ptr, struct sysinfo_t *info)
static void cb_parse_serial(void *ptr, struct sysinfo_t *info)
{
- info->serial = ((struct cb_serial *)ptr);
+ info->cb_serial = virt_to_phys(ptr);
}
static void cb_parse_vboot_workbuf(unsigned char *ptr, struct sysinfo_t *info)