From 34cc54fb356145073051444be9d982c1974ba24e Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Thu, 30 May 2024 17:44:52 +1000 Subject: [PATCH] tests/qtest/migration-test: Use custom asm bios for ppc64 Similar to other archs, build a custom bios memory updater. Running the test with OF code is a cool trick, but SLOF takes a long time to boot. This reduces test time by around 3x (150s to 50s). Reviewed-by: Fabiano Rosas Signed-off-by: Nicholas Piggin Signed-off-by: Fabiano Rosas --- tests/migration/Makefile | 2 +- tests/migration/migration-test.h | 1 + tests/migration/ppc64/Makefile | 15 +++++++ tests/migration/ppc64/a-b-kernel.S | 66 ++++++++++++++++++++++++++++++ tests/migration/ppc64/a-b-kernel.h | 42 +++++++++++++++++++ tests/qtest/migration-test.c | 37 +++-------------- 6 files changed, 131 insertions(+), 32 deletions(-) create mode 100644 tests/migration/ppc64/Makefile create mode 100644 tests/migration/ppc64/a-b-kernel.S create mode 100644 tests/migration/ppc64/a-b-kernel.h diff --git a/tests/migration/Makefile b/tests/migration/Makefile index 13e99b1692..2c5ee287ec 100644 --- a/tests/migration/Makefile +++ b/tests/migration/Makefile @@ -5,7 +5,7 @@ # See the COPYING file in the top-level directory. # -TARGET_LIST = i386 aarch64 s390x +TARGET_LIST = i386 aarch64 s390x ppc64 SRC_PATH = ../.. diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h index 68512c0b1b..194df7df6f 100644 --- a/tests/migration/migration-test.h +++ b/tests/migration/migration-test.h @@ -22,6 +22,7 @@ /* PPC */ #define PPC_TEST_MEM_START (1 * 1024 * 1024) #define PPC_TEST_MEM_END (100 * 1024 * 1024) +#define PPC_H_PUT_TERM_CHAR 0x58 /* ARM */ #define ARM_TEST_MEM_START (0x40000000 + 1 * 1024 * 1024) diff --git a/tests/migration/ppc64/Makefile b/tests/migration/ppc64/Makefile new file mode 100644 index 0000000000..a3a2d98ac8 --- /dev/null +++ b/tests/migration/ppc64/Makefile @@ -0,0 +1,15 @@ +.PHONY: all clean +all: a-b-kernel.h + +a-b-kernel.h: ppc64.kernel + echo "$$__note" > $@ + xxd -i $< | sed -e 's/.*int.*//' >> $@ + +ppc64.kernel: ppc64.elf + $(CROSS_PREFIX)objcopy -O binary -S $< $@ + +ppc64.elf: a-b-kernel.S + $(CROSS_PREFIX)gcc -static -o $@ -nostdlib -Wl,--build-id=none $< + +clean: + $(RM) *.kernel *.elf diff --git a/tests/migration/ppc64/a-b-kernel.S b/tests/migration/ppc64/a-b-kernel.S new file mode 100644 index 0000000000..0613a8d18e --- /dev/null +++ b/tests/migration/ppc64/a-b-kernel.S @@ -0,0 +1,66 @@ +# +# Copyright (c) 2024 IBM, Inc +# +# This work is licensed under the terms of the GNU GPL, version 2 or later. +# See the COPYING file in the top-level directory. + +#include "../migration-test.h" + +.section .text + +.macro print ch + li %r3,PPC_H_PUT_TERM_CHAR + li %r4,0 + li %r5,1 + li %r6,\ch + sldi %r6,%r6,56 + sc 1 +.endm + + .globl _start +_start: +. = 0x100 + /* + * Enter 64-bit mode. Not necessary because the test uses 32-bit + * addresses, but those constants could easily be changed and break + * in 32-bit mode. + */ + mfmsr %r9 + li %r10,-1 + rldimi %r9,%r10,63,0 + mtmsrd %r9 + + /* + * Set up test memory region. Non-volatiles are used because the + * hcall can clobber regs. + * r20 - start address + * r21 - number of pages + */ + lis %r20,PPC_TEST_MEM_START@h + ori %r20,%r20,PPC_TEST_MEM_START@l + lis %r9,PPC_TEST_MEM_END@h + ori %r9,%r9,PPC_TEST_MEM_END@l + subf %r21,%r20,%r9 + li %r10,TEST_MEM_PAGE_SIZE + divd %r21,%r21,%r10 + + print 'A' + + li %r3,0 + mr %r9,%r20 + mtctr %r21 +1: stb %r3,0(%r9) + addi %r9,%r9,TEST_MEM_PAGE_SIZE + bdnz 1b + +loop: + mr %r9,%r20 + mtctr %r21 +1: lbz %r3,0(%r9) + addi %r3,%r3,1 + stb %r3,0(%r9) + addi %r9,%r9,TEST_MEM_PAGE_SIZE + bdnz 1b + + print 'B' + b loop diff --git a/tests/migration/ppc64/a-b-kernel.h b/tests/migration/ppc64/a-b-kernel.h new file mode 100644 index 0000000000..673317efdb --- /dev/null +++ b/tests/migration/ppc64/a-b-kernel.h @@ -0,0 +1,42 @@ +/* This file is automatically generated from the assembly file in + * tests/migration/ppc64. Edit that file and then run "make all" + * inside tests/migration to update, and then remember to send both + * the header and the assembler differences in your patch submission. + */ +unsigned char ppc64_kernel[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x7d, 0x20, 0x00, 0xa6, 0x39, 0x40, 0xff, 0xff, + 0x79, 0x49, 0xf8, 0x0e, 0x7d, 0x20, 0x01, 0x64, 0x3e, 0x80, 0x00, 0x10, + 0x62, 0x94, 0x00, 0x00, 0x3d, 0x20, 0x06, 0x40, 0x61, 0x29, 0x00, 0x00, + 0x7e, 0xb4, 0x48, 0x50, 0x39, 0x40, 0x10, 0x00, 0x7e, 0xb5, 0x53, 0xd2, + 0x38, 0x60, 0x00, 0x58, 0x38, 0x80, 0x00, 0x00, 0x38, 0xa0, 0x00, 0x01, + 0x38, 0xc0, 0x00, 0x41, 0x78, 0xc6, 0xc1, 0xc6, 0x44, 0x00, 0x00, 0x22, + 0x38, 0x60, 0x00, 0x00, 0x7e, 0x89, 0xa3, 0x78, 0x7e, 0xa9, 0x03, 0xa6, + 0x98, 0x69, 0x00, 0x00, 0x39, 0x29, 0x10, 0x00, 0x42, 0x00, 0xff, 0xf8, + 0x7e, 0x89, 0xa3, 0x78, 0x7e, 0xa9, 0x03, 0xa6, 0x88, 0x69, 0x00, 0x00, + 0x38, 0x63, 0x00, 0x01, 0x98, 0x69, 0x00, 0x00, 0x39, 0x29, 0x10, 0x00, + 0x42, 0x00, 0xff, 0xf0, 0x38, 0x60, 0x00, 0x58, 0x38, 0x80, 0x00, 0x00, + 0x38, 0xa0, 0x00, 0x01, 0x38, 0xc0, 0x00, 0x42, 0x78, 0xc6, 0xc1, 0xc6, + 0x44, 0x00, 0x00, 0x22, 0x4b, 0xff, 0xff, 0xcc +}; + diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index ef9ddef1c8..d6f5ceed80 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -128,6 +128,7 @@ static char *bootpath; */ #include "tests/migration/i386/a-b-bootblock.h" #include "tests/migration/aarch64/a-b-kernel.h" +#include "tests/migration/ppc64/a-b-kernel.h" #include "tests/migration/s390x/a-b-bios.h" static void bootfile_create(char *dir, bool suspend_me) @@ -147,10 +148,8 @@ static void bootfile_create(char *dir, bool suspend_me) content = s390x_elf; len = sizeof(s390x_elf); } else if (strcmp(arch, "ppc64") == 0) { - /* - * sane architectures can be programmed at the boot prompt - */ - return; + content = ppc64_kernel; + len = sizeof(ppc64_kernel); } else if (strcmp(arch, "aarch64") == 0) { content = aarch64_kernel; len = sizeof(aarch64_kernel); @@ -181,29 +180,10 @@ static void wait_for_serial(const char *side) { g_autofree char *serialpath = g_strdup_printf("%s/%s", tmpfs, side); FILE *serialfile = fopen(serialpath, "r"); - const char *arch = qtest_get_arch(); - int started = (strcmp(side, "src_serial") == 0 && - strcmp(arch, "ppc64") == 0) ? 0 : 1; do { int readvalue = fgetc(serialfile); - if (!started) { - /* SLOF prints its banner before starting test, - * to ignore it, mark the start of the test with '_', - * ignore all characters until this marker - */ - switch (readvalue) { - case '_': - started = 1; - break; - case EOF: - fseek(serialfile, 0, SEEK_SET); - usleep(1000); - break; - } - continue; - } switch (readvalue) { case 'A': /* Fine */ @@ -215,8 +195,6 @@ static void wait_for_serial(const char *side) return; case EOF: - started = (strcmp(side, "src_serial") == 0 && - strcmp(arch, "ppc64") == 0) ? 0 : 1; fseek(serialfile, 0, SEEK_SET); usleep(1000); break; @@ -737,14 +715,11 @@ static int test_migrate_start(QTestState **from, QTestState **to, memory_size = "256M"; start_address = PPC_TEST_MEM_START; end_address = PPC_TEST_MEM_END; - arch_source = g_strdup_printf("-prom-env 'use-nvramrc?=true' -prom-env " - "'nvramrc=hex .\" _\" begin %x %x " - "do i c@ 1 + i c! 1000 +loop .\" B\" 0 " - "until'", end_address, start_address); machine_alias = "pseries"; machine_opts = "vsmt=8"; - arch_opts = g_strdup("-nodefaults " - "-machine " PSERIES_DEFAULT_CAPABILITIES); + arch_opts = g_strdup_printf( + "-nodefaults -machine " PSERIES_DEFAULT_CAPABILITIES " " + "-bios %s", bootpath); } else if (strcmp(arch, "aarch64") == 0) { memory_size = "150M"; machine_alias = "virt";