s390/protvirt: add memory sharing for diag 308 set/store (db9492ce) · Commits · 戴 / test

arch/s390/boot/ipl_parm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@
		#include <asm/sections.h>
		#include <asm/boot_data.h>
		#include <asm/facility.h>
		#include <asm/uv.h>
		#include "boot.h"

		char __bootdata(early_command_line)[COMMAND_LINE_SIZE];
		@@ -45,7 +46,9 @@ void store_ipl_parmblock(void)
		{
		int rc;

		uv_set_shared(__pa(&ipl_block));
		rc = __diag308(DIAG308_STORE, &ipl_block);
		uv_remove_shared(__pa(&ipl_block));
		if (rc == DIAG308_RC_OK &&
		ipl_block.hdr.version <= IPL_MAX_SUPPORTED_VERSION)
		ipl_block_valid = 1;

+9 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@
		#include <asm/os_info.h>
		#include <asm/sections.h>
		#include <asm/boot_data.h>
		#include <asm/uv.h>
		#include "entry.h"

		#define IPL_PARM_BLOCK_VERSION 0
		@@ -863,15 +864,21 @@ static void __reipl_run(void *unused)
		{
		switch (reipl_type) {
		case IPL_TYPE_CCW:
		uv_set_shared(__pa(reipl_block_ccw));
		diag308(DIAG308_SET, reipl_block_ccw);
		uv_remove_shared(__pa(reipl_block_ccw));
		diag308(DIAG308_LOAD_CLEAR, NULL);
		break;
		case IPL_TYPE_FCP:
		uv_set_shared(__pa(reipl_block_fcp));
		diag308(DIAG308_SET, reipl_block_fcp);
		uv_remove_shared(__pa(reipl_block_fcp));
		diag308(DIAG308_LOAD_CLEAR, NULL);
		break;
		case IPL_TYPE_NSS:
		uv_set_shared(__pa(reipl_block_nss));
		diag308(DIAG308_SET, reipl_block_nss);
		uv_remove_shared(__pa(reipl_block_nss));
		diag308(DIAG308_LOAD_CLEAR, NULL);
		break;
		case IPL_TYPE_UNKNOWN:
		@@ -1142,7 +1149,9 @@ static struct kset *dump_kset;

		static void diag308_dump(void *dump_block)
		{
		uv_set_shared(__pa(dump_block));
		diag308(DIAG308_SET, dump_block);
		uv_remove_shared(__pa(dump_block));
		while (1) {
		if (diag308(DIAG308_LOAD_NORMAL_DUMP, NULL) != 0x302)
		break;