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bhyve: build MCFG table by basl

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Building the MCFG table by basl will allow it to be loaded by qemu's
ACPI table loader in the future.

Reviewed by:		jhb, markj (older version)
Approved by:		manu (mentor)
MFC after:		2 weeks
Sponsored by:		Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36995
This commit is contained in:
Corvin Köhne 2022-04-06 11:10:41 +02:00
parent 8897b562ab
commit 2c2bd15532
No known key found for this signature in database
GPG key ID: D854DA56315E026A
1 changed files with 24 additions and 32 deletions
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56
usr.sbin/bhyve/acpi.c
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@ -589,37 +589,6 @@ basl_fwrite_hpet(FILE *fp)
return (errno);
}
static int
basl_fwrite_mcfg(FILE *fp)
{
EFPRINTF(fp, "/*\n");
EFPRINTF(fp, " * bhyve MCFG template\n");
EFPRINTF(fp, " */\n");
EFPRINTF(fp, "[0004]\t\tSignature : \"MCFG\"\n");
EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVMCFG \"\n");
EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
/* iasl will fill in the compiler ID/revision fields */
EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
EFPRINTF(fp, "[0008]\t\tReserved : 0\n");
EFPRINTF(fp, "\n");
EFPRINTF(fp, "[0008]\t\tBase Address : %016lX\n", pci_ecfg_base());
EFPRINTF(fp, "[0002]\t\tSegment Group Number : 0000\n");
EFPRINTF(fp, "[0001]\t\tStart Bus Number : 00\n");
EFPRINTF(fp, "[0001]\t\tEnd Bus Number : FF\n");
EFPRINTF(fp, "[0004]\t\tReserved : 0\n");
EFFLUSH(fp);
return (0);
err_exit:
return (errno);
}
/*
* Helper routines for writing to the DSDT from other modules.
*/
@ -950,6 +919,29 @@ build_facs(struct vmctx *const ctx)
return (0);
}
static int
build_mcfg(struct vmctx *const ctx)
{
ACPI_TABLE_MCFG mcfg;
ACPI_MCFG_ALLOCATION mcfg_allocation;
struct basl_table *table;
BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_MCFG,
BASL_TABLE_ALIGNMENT, MCFG_OFFSET));
memset(&mcfg, 0, sizeof(mcfg));
BASL_EXEC(basl_table_append_header(table, ACPI_SIG_MCFG, 1, 1));
BASL_EXEC(basl_table_append_content(table, &mcfg, sizeof(mcfg)));
memset(&mcfg_allocation, 0, sizeof(mcfg_allocation));
mcfg_allocation.Address = htole64(pci_ecfg_base());
mcfg_allocation.EndBusNumber = 0xFF;
BASL_EXEC(basl_table_append_bytes(table, &mcfg_allocation,
sizeof(mcfg_allocation)));
return (0);
}
int
acpi_build(struct vmctx *ctx, int ncpu)
{
@ -989,7 +981,7 @@ acpi_build(struct vmctx *ctx, int ncpu)
BASL_EXEC(basl_compile(ctx, basl_fwrite_madt, MADT_OFFSET));
BASL_EXEC(basl_compile(ctx, basl_fwrite_fadt, FADT_OFFSET));
BASL_EXEC(basl_compile(ctx, basl_fwrite_hpet, HPET_OFFSET));
BASL_EXEC(basl_compile(ctx, basl_fwrite_mcfg, MCFG_OFFSET));
BASL_EXEC(build_mcfg(ctx));
BASL_EXEC(build_facs(ctx));
BASL_EXEC(build_dsdt(ctx));