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* Refine the distro support policy

Browse Source 
* Deprecate 32-bit x86 and arm hosts for system emulation
 * Check bison version to be >= 3.0
 * Compile vnc test only if vnc is really enabled
 * Check docs/config/ich9-ehci-uhci.cfg via the readconfig-test
 * s390x: Add support for list-directed IPL from ECKD DASD
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Merge tag 'pull-request-2023-03-07' of https://gitlab.com/thuth/qemu into staging

* Refine the distro support policy
* Deprecate 32-bit x86 and arm hosts for system emulation
* Check bison version to be >= 3.0
* Compile vnc test only if vnc is really enabled
* Check docs/config/ich9-ehci-uhci.cfg via the readconfig-test
* s390x: Add support for list-directed IPL from ECKD DASD

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# gpg: Signature made Wed 08 Mar 2023 07:58:53 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2023-03-07' of https://gitlab.com/thuth/qemu:
  pc-bios/s390-ccw: Update s390-ccw.img with the list-directed IPL fix
  pc-bios: Add support for List-Directed IPL from ECKD DASD
  docs/config: Set the "kvm" accelerator via "[accel]" section
  tests/qtest/readconfig: Test docs/config/ich9-ehci-uhci.cfg
  tests/qtest/readconfig: Rework test_object_rng_resp into a generic function
  gitlab-ci.d/crossbuilds: Drop the 32-bit arm system emulation jobs
  docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation
  gitlab-ci.d/crossbuilds: Drop the i386 system emulation job
  docs/about/deprecated: Deprecate 32-bit x86 hosts for system emulation
  include/hw/i386: Clean up includes in x86.h
  test: Check vnc enable before compiling vnc test
  Hexagon (meson.build): define min bison version
  docs/about/build-platforms: Refine the distro support policy

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2023-03-09 15:19:30 +00:00
commit dea644928d
16 changed files with 221 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
.gitlab-ci.d/crossbuilds.yml
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@ -1,13 +1,6 @@
include:
- local: '/.gitlab-ci.d/crossbuild-template.yml'
cross-armel-system:
extends: .cross_system_build_job
needs:
job: armel-debian-cross-container
variables:
IMAGE: debian-armel-cross
cross-armel-user:
extends: .cross_user_build_job
needs:
@ -15,13 +8,6 @@ cross-armel-user:
variables:
IMAGE: debian-armel-cross
cross-armhf-system:
extends: .cross_system_build_job
needs:
job: armhf-debian-cross-container
variables:
IMAGE: debian-armhf-cross
cross-armhf-user:
extends: .cross_user_build_job
needs:
@ -43,16 +29,6 @@ cross-arm64-user:
variables:
IMAGE: debian-arm64-cross
cross-i386-system:
extends:
- .cross_system_build_job
- .cross_test_artifacts
needs:
job: i386-fedora-cross-container
variables:
IMAGE: fedora-i386-cross
MAKE_CHECK_ARGS: check-qtest
cross-i386-user:
extends:
- .cross_user_build_job

1
configure vendored
View File

@ -2262,6 +2262,7 @@ fi
# tests might fail. Prefer to keep the relevant files in their own
# directory and symlink the directory instead.
LINKS="Makefile"
LINKS="$LINKS docs/config"
LINKS="$LINKS pc-bios/optionrom/Makefile"
LINKS="$LINKS pc-bios/s390-ccw/Makefile"
LINKS="$LINKS pc-bios/vof/Makefile"

3
docs/about/build-platforms.rst
View File

@ -67,7 +67,8 @@ Non-supported architectures may be removed in the future following the
Linux OS, macOS, FreeBSD, NetBSD, OpenBSD
-----------------------------------------
The project aims to support the most recent major version at all times. Support
The project aims to support the most recent major version at all times for
up to five years after its initial release. Support
for the previous major version will be dropped 2 years after the new major
version is released or when the vendor itself drops support, whichever comes
first. In this context, third-party efforts to extend the lifetime of a distro

20
docs/about/deprecated.rst
View File

@ -196,6 +196,26 @@ CI coverage support may bitrot away before the deprecation process
completes. The little endian variants of MIPS (both 32 and 64 bit) are
still a supported host architecture.
System emulation on 32-bit x86 hosts (since 8.0)
''''''''''''''''''''''''''''''''''''''''''''''''
Support for 32-bit x86 host deployments is increasingly uncommon in mainstream
OS distributions given the widespread availability of 64-bit x86 hardware.
The QEMU project no longer considers 32-bit x86 support for system emulation to
be an effective use of its limited resources, and thus intends to discontinue
it. Since all recent x86 hardware from the past >10 years is capable of the
64-bit x86 extensions, a corresponding 64-bit OS should be used instead.
System emulation on 32-bit arm hosts (since 8.0)
''''''''''''''''''''''''''''''''''''''''''''''''
Since QEMU needs a strong host machine for running full system emulation, and
all recent powerful arm hosts support 64-bit, the QEMU project deprecates the
support for running any system emulation on 32-bit arm hosts in general. Use
64-bit arm hosts for system emulation instead. (Note: "user" mode emulation
continues to be supported on 32-bit arm hosts, too)
QEMU API (QAPI) events
----------------------

4
docs/config/mach-virt-graphical.cfg
View File

@ -56,9 +56,11 @@
[machine]
type = "virt"
accel = "kvm"
gic-version = "host"
[accel]
accel = "kvm"
[memory]
size = "1024"

4
docs/config/mach-virt-serial.cfg
View File

@ -62,9 +62,11 @@
[machine]
type = "virt"
accel = "kvm"
gic-version = "host"
[accel]
accel = "kvm"
[memory]
size = "1024"

2
docs/config/q35-emulated.cfg
View File

@ -61,6 +61,8 @@
[machine]
type = "q35"
[accel]
accel = "kvm"
[memory]

2
docs/config/q35-virtio-graphical.cfg
View File

@ -55,6 +55,8 @@
[machine]
type = "q35"
[accel]
accel = "kvm"
[memory]

2
docs/config/q35-virtio-serial.cfg
View File

@ -60,6 +60,8 @@
[machine]
type = "q35"
[accel]
accel = "kvm"
[memory]

2
include/hw/i386/x86.h
View File

@ -18,10 +18,8 @@
#define HW_I386_X86_H
#include "exec/hwaddr.h"
#include "qemu/notify.h"
#include "hw/boards.h"
#include "hw/nmi.h"
#include "hw/intc/ioapic.h"
#include "hw/isa/isa.h"
#include "qom/object.h"

BIN
pc-bios/s390-ccw.img
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Binary file not shown.

161
pc-bios/s390-ccw/bootmap.c
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@ -72,42 +72,74 @@ static inline void verify_boot_info(BootInfo *bip)
"Bad block size in zIPL section of the 1st record.");
}
static block_number_t eckd_block_num(EckdCHS *chs)
static void eckd_format_chs(ExtEckdBlockPtr *ptr, bool ldipl,
uint64_t *c,
uint64_t *h,
uint64_t *s)
{
if (ldipl) {
*c = ptr->ldptr.chs.cylinder;
*h = ptr->ldptr.chs.head;
*s = ptr->ldptr.chs.sector;
} else {
*c = ptr->bptr.chs.cylinder;
*h = ptr->bptr.chs.head;
*s = ptr->bptr.chs.sector;
}
}
static block_number_t eckd_chs_to_block(uint64_t c, uint64_t h, uint64_t s)
{
const uint64_t sectors = virtio_get_sectors();
const uint64_t heads = virtio_get_heads();
const uint64_t cylinder = chs->cylinder
+ ((chs->head & 0xfff0) << 12);
const uint64_t head = chs->head & 0x000f;
const uint64_t cylinder = c + ((h & 0xfff0) << 12);
const uint64_t head = h & 0x000f;
const block_number_t block = sectors * heads * cylinder
+ sectors * head
+ chs->sector
- 1; /* block nr starts with zero */
+ s - 1; /* block nr starts with zero */
return block;
}
static bool eckd_valid_address(BootMapPointer *p)
static block_number_t eckd_block_num(EckdCHS *chs)
{
const uint64_t head = p->eckd.chs.head & 0x000f;
return eckd_chs_to_block(chs->cylinder, chs->head, chs->sector);
}
static block_number_t gen_eckd_block_num(ExtEckdBlockPtr *ptr, bool ldipl)
{
uint64_t cyl, head, sec;
eckd_format_chs(ptr, ldipl, &cyl, &head, &sec);
return eckd_chs_to_block(cyl, head, sec);
}
static bool eckd_valid_chs(uint64_t cyl, uint64_t head, uint64_t sector)
{
if (head >= virtio_get_heads()
|| p->eckd.chs.sector > virtio_get_sectors()
|| p->eckd.chs.sector <= 0) {
|| sector > virtio_get_sectors()
|| sector <= 0) {
return false;
}
if (!virtio_guessed_disk_nature() &&
eckd_block_num(&p->eckd.chs) >= virtio_get_blocks()) {
eckd_chs_to_block(cyl, head, sector) >= virtio_get_blocks()) {
return false;
}
return true;
}
static block_number_t load_eckd_segments(block_number_t blk, uint64_t *address)
static bool eckd_valid_address(ExtEckdBlockPtr *ptr, bool ldipl)
{
uint64_t cyl, head, sec;
eckd_format_chs(ptr, ldipl, &cyl, &head, &sec);
return eckd_valid_chs(cyl, head, sec);
}
static block_number_t load_eckd_segments(block_number_t blk, bool ldipl,
uint64_t *address)
{
block_number_t block_nr;
int j, rc;
int j, rc, count;
BootMapPointer *bprs = (void *)_bprs;
bool more_data;
@ -117,7 +149,7 @@ static block_number_t load_eckd_segments(block_number_t blk, uint64_t *address)
do {
more_data = false;
for (j = 0;; j++) {
block_nr = eckd_block_num(&bprs[j].xeckd.bptr.chs);
block_nr = gen_eckd_block_num(&bprs[j].xeckd, ldipl);
if (is_null_block_number(block_nr)) { /* end of chunk */
break;
}
@ -129,11 +161,26 @@ static block_number_t load_eckd_segments(block_number_t blk, uint64_t *address)
break;
}
IPL_assert(block_size_ok(bprs[j].xeckd.bptr.size),
/* List directed pointer does not store block size */
IPL_assert(ldipl || block_size_ok(bprs[j].xeckd.bptr.size),
"bad chunk block size");
IPL_assert(eckd_valid_address(&bprs[j]), "bad chunk ECKD addr");
if ((bprs[j].xeckd.bptr.count == 0) && unused_space(&(bprs[j+1]),
if (!eckd_valid_address(&bprs[j].xeckd, ldipl)) {
/*
* If an invalid address is found during LD-IPL then break and
* retry as CCW
*/
IPL_assert(ldipl, "bad chunk ECKD addr");
break;
}
if (ldipl) {
count = bprs[j].xeckd.ldptr.count;
} else {
count = bprs[j].xeckd.bptr.count;
}
if (count == 0 && unused_space(&bprs[j + 1],
sizeof(EckdBlockPtr))) {
/* This is a "continue" pointer.
* This ptr should be the last one in the current
@ -149,11 +196,10 @@ static block_number_t load_eckd_segments(block_number_t blk, uint64_t *address)
/* Load (count+1) blocks of code at (block_nr)
* to memory (address).
*/
rc = virtio_read_many(block_nr, (void *)(*address),
bprs[j].xeckd.bptr.count+1);
rc = virtio_read_many(block_nr, (void *)(*address), count + 1);
IPL_assert(rc == 0, "code chunk read failed");
*address += (bprs[j].xeckd.bptr.count+1) * virtio_get_block_size();
*address += (count + 1) * virtio_get_block_size();
}
} while (more_data);
return block_nr;
@ -237,8 +283,10 @@ static void run_eckd_boot_script(block_number_t bmt_block_nr,
uint64_t address;
BootMapTable *bmt = (void *)sec;
BootMapScript *bms = (void *)sec;
/* The S1B block number is NULL_BLOCK_NR if and only if it's an LD-IPL */
bool ldipl = (s1b_block_nr == NULL_BLOCK_NR);
if (menu_is_enabled_zipl()) {
if (menu_is_enabled_zipl() && !ldipl) {
loadparm = eckd_get_boot_menu_index(s1b_block_nr);
}
@ -249,7 +297,7 @@ static void run_eckd_boot_script(block_number_t bmt_block_nr,
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(bmt_block_nr, sec, "Cannot read Boot Map Table");
block_nr = eckd_block_num(&bmt->entry[loadparm].xeckd.bptr.chs);
block_nr = gen_eckd_block_num(&bmt->entry[loadparm].xeckd, ldipl);
IPL_assert(block_nr != -1, "Cannot find Boot Map Table Entry");
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
@ -264,13 +312,18 @@ static void run_eckd_boot_script(block_number_t bmt_block_nr,
}
address = bms->entry[i].address.load_address;
block_nr = eckd_block_num(&bms->entry[i].blkptr.xeckd.bptr.chs);
block_nr = gen_eckd_block_num(&bms->entry[i].blkptr.xeckd, ldipl);
do {
block_nr = load_eckd_segments(block_nr, &address);
block_nr = load_eckd_segments(block_nr, ldipl, &address);
} while (block_nr != -1);
}
if (ldipl && bms->entry[i].type != BOOT_SCRIPT_EXEC) {
/* Abort LD-IPL and retry as CCW-IPL */
return;
}
IPL_assert(bms->entry[i].type == BOOT_SCRIPT_EXEC,
"Unknown script entry type");
write_reset_psw(bms->entry[i].address.load_address); /* no return */
@ -380,6 +433,23 @@ static void ipl_eckd_ldl(ECKD_IPL_mode_t mode)
/* no return */
}
static block_number_t eckd_find_bmt(ExtEckdBlockPtr *ptr)
{
block_number_t blockno;
uint8_t tmp_sec[MAX_SECTOR_SIZE];
BootRecord *br;
blockno = gen_eckd_block_num(ptr, 0);
read_block(blockno, tmp_sec, "Cannot read boot record");
br = (BootRecord *)tmp_sec;
if (!magic_match(br->magic, ZIPL_MAGIC)) {
/* If the boot record is invalid, return and try CCW-IPL instead */
return NULL_BLOCK_NR;
}
return gen_eckd_block_num(&br->pgt.xeckd, 1);
}
static void print_eckd_msg(void)
{
char msg[] = "Using ECKD scheme (block size *****), ";
@ -401,28 +471,43 @@ static void print_eckd_msg(void)
static void ipl_eckd(void)
{
XEckdMbr *mbr = (void *)sec;
LDL_VTOC *vlbl = (void *)sec;
IplVolumeLabel *vlbl = (void *)sec;
LDL_VTOC *vtoc = (void *)sec;
block_number_t ldipl_bmt; /* Boot Map Table for List-Directed IPL */
print_eckd_msg();
/* Grab the MBR again */
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(0, mbr, "Cannot read block 0 on DASD");
if (magic_match(mbr->magic, IPL1_MAGIC)) {
ipl_eckd_cdl(); /* only returns in case of error */
return;
}
/* LDL/CMS? */
/* Block 2 can contain either the CDL VOL1 label or the LDL VTOC */
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(2, vlbl, "Cannot read block 2");
if (magic_match(vlbl->magic, CMS1_MAGIC)) {
/*
* First check for a list-directed-format pointer which would
* supersede the CCW pointer.
*/
if (eckd_valid_address((ExtEckdBlockPtr *)&vlbl->f.br, 0)) {
ldipl_bmt = eckd_find_bmt((ExtEckdBlockPtr *)&vlbl->f.br);
if (ldipl_bmt) {
sclp_print("List-Directed\n");
/* LD-IPL does not use the S1B bock, just make it NULL */
run_eckd_boot_script(ldipl_bmt, NULL_BLOCK_NR);
/* Only return in error, retry as CCW-IPL */
sclp_print("Retrying IPL ");
print_eckd_msg();
}
memset(sec, FREE_SPACE_FILLER, sizeof(sec));
read_block(2, vtoc, "Cannot read block 2");
}
/* Not list-directed */
if (magic_match(vtoc->magic, VOL1_MAGIC)) {
ipl_eckd_cdl(); /* may return in error */
}
if (magic_match(vtoc->magic, CMS1_MAGIC)) {
ipl_eckd_ldl(ECKD_CMS); /* no return */
}
if (magic_match(vlbl->magic, LNX1_MAGIC)) {
if (magic_match(vtoc->magic, LNX1_MAGIC)) {
ipl_eckd_ldl(ECKD_LDL); /* no return */
}

30
pc-bios/s390-ccw/bootmap.h
View File

@ -45,9 +45,23 @@ typedef struct EckdBlockPtr {
* it's 0 for TablePtr, ScriptPtr, and SectionPtr */
} __attribute__ ((packed)) EckdBlockPtr;
typedef struct ExtEckdBlockPtr {
typedef struct LdEckdCHS {
uint32_t cylinder;
uint8_t head;
uint8_t sector;
} __attribute__ ((packed)) LdEckdCHS;
typedef struct LdEckdBlockPtr {
LdEckdCHS chs; /* cylinder/head/sector is an address of the block */
uint8_t reserved[4];
uint16_t count;
uint32_t pad;
} __attribute__ ((packed)) LdEckdBlockPtr;
/* bptr is used for CCW type IPL, while ldptr is for list-directed IPL */
typedef union ExtEckdBlockPtr {
EckdBlockPtr bptr;
uint8_t reserved[8];
LdEckdBlockPtr ldptr;
} __attribute__ ((packed)) ExtEckdBlockPtr;
typedef union BootMapPointer {
@ -57,6 +71,15 @@ typedef union BootMapPointer {
ExtEckdBlockPtr xeckd;
} __attribute__ ((packed)) BootMapPointer;
typedef struct BootRecord {
uint8_t magic[4];
uint32_t version;
uint64_t res1;
BootMapPointer pgt;
uint8_t reserved[510 - 32];
uint16_t os_id;
} __attribute__ ((packed)) BootRecord;
/* aka Program Table */
typedef struct BootMapTable {
uint8_t magic[4];
@ -292,7 +315,8 @@ typedef struct IplVolumeLabel {
struct {
unsigned char key[4]; /* == "VOL1" */
unsigned char volser[6];
unsigned char reserved[6];
unsigned char reserved[64];
EckdCHS br; /* Location of Boot Record for list-directed IPL */
} f;
};
} __attribute__((packed)) IplVolumeLabel;

2
target/hexagon/meson.build
View File

@ -183,7 +183,7 @@ if idef_parser_enabled and 'hexagon-linux-user' in target_dirs
)
bison = generator(
find_program('bison'),
find_program('bison', version: '>=3.0'),
output: ['@BASENAME@.tab.c', '@BASENAME@.tab.h'],
arguments: ['@INPUT@', '--defines=@OUTPUT1@', '--output=@OUTPUT0@']
)

10
tests/qtest/meson.build
View File

@ -309,10 +309,12 @@ qtests = {
'netdev-socket': files('netdev-socket.c', '../unit/socket-helpers.c'),
}
gvnc = dependency('gvnc-1.0', required: false)
if gvnc.found()
qtests += {'vnc-display-test': [gvnc]}
qtests_generic += [ 'vnc-display-test' ]
if vnc.found()
gvnc = dependency('gvnc-1.0', required: false)
if gvnc.found()
qtests += {'vnc-display-test': [gvnc]}
qtests_generic += [ 'vnc-display-test' ]
endif
endif
if dbus_display

36
tests/qtest/readconfig-test.c
View File

@ -124,13 +124,15 @@ static void test_spice(void)
}
#endif
static void test_object_rng_resp(QObject *res)
static void test_object_available(QObject *res, const char *name,
const char *type)
{
Visitor *v;
g_autoptr(ObjectPropertyInfoList) objs = NULL;
ObjectPropertyInfoList *tmp;
ObjectPropertyInfo *obj;
bool seen_rng = false;
bool object_available = false;
g_autofree char *childtype = g_strdup_printf("child<%s>", type);
g_assert(res);
v = qobject_input_visitor_new(res);
@ -142,16 +144,15 @@ static void test_object_rng_resp(QObject *res)
g_assert(tmp->value);
obj = tmp->value;
if (g_str_equal(obj->name, "rng0") &&
g_str_equal(obj->type, "child<rng-builtin>")) {
seen_rng = true;
if (g_str_equal(obj->name, name) && g_str_equal(obj->type, childtype)) {
object_available = true;
break;
}
tmp = tmp->next;
}
g_assert(seen_rng);
g_assert(object_available);
visit_free(v);
}
@ -170,7 +171,27 @@ static void test_object_rng(void)
resp = qtest_qmp(qts,
"{ 'execute': 'qom-list',"
" 'arguments': {'path': '/objects' }}");
test_object_rng_resp(qdict_get(resp, "return"));
test_object_available(qdict_get(resp, "return"), "rng0", "rng-builtin");
qobject_unref(resp);
qtest_quit(qts);
}
static void test_docs_config_ich9(void)
{
QTestState *qts;
QDict *resp;
QObject *qobj;
qts = qtest_initf("-nodefaults -readconfig docs/config/ich9-ehci-uhci.cfg");
resp = qtest_qmp(qts, "{ 'execute': 'qom-list',"
" 'arguments': {'path': '/machine/peripheral' }}");
qobj = qdict_get(resp, "return");
test_object_available(qobj, "ehci", "ich9-usb-ehci1");
test_object_available(qobj, "uhci-1", "ich9-usb-uhci1");
test_object_available(qobj, "uhci-2", "ich9-usb-uhci2");
test_object_available(qobj, "uhci-3", "ich9-usb-uhci3");
qobject_unref(resp);
qtest_quit(qts);
@ -186,6 +207,7 @@ int main(int argc, char *argv[])
if (g_str_equal(arch, "i386") ||
g_str_equal(arch, "x86_64")) {
qtest_add_func("readconfig/x86/memdev", test_x86_memdev);
qtest_add_func("readconfig/x86/ich9-ehci-uhci", test_docs_config_ich9);
}
#ifdef CONFIG_SPICE
qtest_add_func("readconfig/spice", test_spice);