[kvmtool PATCH v3 4/4] riscv: Correct number of hart bits

[Anup Patel]

From: Andrew Jones <ajones at ventanamicro.com>

The number of hart bits should be obtained from the highest hart ID,
not the number of harts. For example, if a guest has 2 harts, then
the number of bits should be fls(1) == 1.

Signed-off-by: Andrew Jones <ajones at ventanamicro.com>
Signed-off-by: Anup Patel <apatel at ventanamicro.com>
---
 riscv/aia.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/riscv/aia.c b/riscv/aia.c
index fe9399a..21d9704 100644
--- a/riscv/aia.c
+++ b/riscv/aia.c
@@ -164,7 +164,7 @@ static int aia__init(struct kvm *kvm)
 	ret = ioctl(aia_fd, KVM_SET_DEVICE_ATTR, &aia_nr_sources_attr);
 	if (ret)
 		return ret;
-	aia_hart_bits = fls_long(kvm->nrcpus);
+	aia_hart_bits = fls_long(kvm->nrcpus - 1);
 	ret = ioctl(aia_fd, KVM_SET_DEVICE_ATTR, &aia_hart_bits_attr);
 	if (ret)
 		return ret;
-- 
2.34.1