diff options
| author | Collin Walling | 2018-05-29 06:40:09 +0200 |
|---|---|---|
| committer | Thomas Huth | 2018-06-18 15:08:44 +0200 |
| commit | a0e11b617b9ef41cefe8739dff4d6a7b01ca967f (patch) | |
| tree | 21889217483a4dd05efefb970202b7e419caee1a /pc-bios | |
| parent | Merge remote-tracking branch 'remotes/kraxel/tags/usb-20180612-pull-request' ... (diff) | |
| download | qemu-a0e11b617b9ef41cefe8739dff4d6a7b01ca967f.tar.gz qemu-a0e11b617b9ef41cefe8739dff4d6a7b01ca967f.tar.xz qemu-a0e11b617b9ef41cefe8739dff4d6a7b01ca967f.zip | |
pc-bios/s390-ccw: define loadparm length
Loadparm is defined by the s390 architecture to be 8 bytes
in length. Let's define this size in the s390-ccw bios.
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/iplb.h | 4 | ||||
| -rw-r--r-- | pc-bios/s390-ccw/main.c | 8 | ||||
| -rw-r--r-- | pc-bios/s390-ccw/sclp.c | 2 | ||||
| -rw-r--r-- | pc-bios/s390-ccw/sclp.h | 2 |
4 files changed, 9 insertions, 7 deletions
diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h index ded20c834e..772d5c57c9 100644 --- a/pc-bios/s390-ccw/iplb.h +++ b/pc-bios/s390-ccw/iplb.h @@ -12,6 +12,8 @@ #ifndef IPLB_H #define IPLB_H +#define LOADPARM_LEN 8 + struct IplBlockCcw { uint8_t reserved0[85]; uint8_t ssid; @@ -61,7 +63,7 @@ struct IplParameterBlock { uint8_t pbt; uint8_t flags; uint16_t reserved01; - uint8_t loadparm[8]; + uint8_t loadparm[LOADPARM_LEN]; union { IplBlockCcw ccw; IplBlockFcp fcp; diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index 26f9adf84a..544851d672 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -15,7 +15,7 @@ char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE))); static SubChannelId blk_schid = { .one = 1 }; IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE))); -static char loadparm_str[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }; +static char loadparm_str[LOADPARM_LEN + 1] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }; QemuIplParameters qipl; #define LOADPARM_PROMPT "PROMPT " @@ -80,13 +80,13 @@ static bool find_dev(Schib *schib, int dev_no) static void menu_setup(void) { - if (memcmp(loadparm_str, LOADPARM_PROMPT, 8) == 0) { + if (memcmp(loadparm_str, LOADPARM_PROMPT, LOADPARM_LEN) == 0) { menu_set_parms(QIPL_FLAG_BM_OPTS_CMD, 0); return; } /* If loadparm was set to any other value, then do not enable menu */ - if (memcmp(loadparm_str, LOADPARM_EMPTY, 8) != 0) { + if (memcmp(loadparm_str, LOADPARM_EMPTY, LOADPARM_LEN) != 0) { return; } @@ -117,7 +117,7 @@ static void virtio_setup(void) enable_mss_facility(); sclp_get_loadparm_ascii(loadparm_str); - memcpy(ldp + 10, loadparm_str, 8); + memcpy(ldp + 10, loadparm_str, LOADPARM_LEN); sclp_print(ldp); memcpy(&qipl, early_qipl, sizeof(QemuIplParameters)); diff --git a/pc-bios/s390-ccw/sclp.c b/pc-bios/s390-ccw/sclp.c index 3836cb4716..c0223fab0b 100644 --- a/pc-bios/s390-ccw/sclp.c +++ b/pc-bios/s390-ccw/sclp.c @@ -114,7 +114,7 @@ void sclp_get_loadparm_ascii(char *loadparm) memset((char *)_sccb, 0, sizeof(ReadInfo)); sccb->h.length = sizeof(ReadInfo); if (!sclp_service_call(SCLP_CMDW_READ_SCP_INFO, sccb)) { - ebcdic_to_ascii((char *) sccb->loadparm, loadparm, 8); + ebcdic_to_ascii((char *) sccb->loadparm, loadparm, LOADPARM_LEN); } } diff --git a/pc-bios/s390-ccw/sclp.h b/pc-bios/s390-ccw/sclp.h index 0dd987ff5d..8450161ba7 100644 --- a/pc-bios/s390-ccw/sclp.h +++ b/pc-bios/s390-ccw/sclp.h @@ -56,7 +56,7 @@ typedef struct ReadInfo { uint16_t rnmax; uint8_t rnsize; uint8_t reserved[13]; - uint8_t loadparm[8]; + uint8_t loadparm[LOADPARM_LEN]; } __attribute__((packed)) ReadInfo; typedef struct SCCB { |