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hw/riscv: virt: Increase maximum number of allowed CPUs

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To facilitate software development of RISC-V systems with large number
of HARTs, we increase the maximum number of allowed CPUs to 512 (2^9).

We also add a detailed source level comments about limit defines which
impact the physical address space utilization.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-Id: <20220220085526.808674-6-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel 2022-02-20 14:25:26 +05:30 • committed by Alistair Francis
parent c65bc383ed
commit 0631aaae31
2 changed files with 11 additions and 1 deletions
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2
include/hw/riscv/virt.h
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@ -24,7 +24,7 @@
#include "hw/block/flash.h"
#include "qom/object.h"
#define VIRT_CPUS_MAX_BITS 3
#define VIRT_CPUS_MAX_BITS 9
#define VIRT_CPUS_MAX (1 << VIRT_CPUS_MAX_BITS)
#define VIRT_SOCKETS_MAX_BITS 2
#define VIRT_SOCKETS_MAX (1 << VIRT_SOCKETS_MAX_BITS)