From 55b1587fdd0b22ee7ee1ec48b77d832ffb2bdea1 Mon Sep 17 00:00:00 2001
From: Alex Fan <alex.fan.q@gmail.com>
Date: Mon, 27 Dec 2021 18:25:52 +1100
Subject: app-emulation/kvmtool: add riscv kernel version check

Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Alex Fan <alex.fan.q@gmail.com>
---
 app-emulation/kvmtool/kvmtool-9999.ebuild | 20 ++++++++++++++------
 app-emulation/kvmtool/metadata.xml        |  5 +++++
 2 files changed, 19 insertions(+), 6 deletions(-)
 create mode 100644 app-emulation/kvmtool/metadata.xml

diff --git a/app-emulation/kvmtool/kvmtool-9999.ebuild b/app-emulation/kvmtool/kvmtool-9999.ebuild
index 964e836..b5f35de 100644
--- a/app-emulation/kvmtool/kvmtool-9999.ebuild
+++ b/app-emulation/kvmtool/kvmtool-9999.ebuild
@@ -1,5 +1,5 @@
+# Copyright 2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
-# adapted from https://data.gpo.zugaina.org/defiance/app-emulation/kvmtool/kvmtool-9999.ebuild
 
 EAPI=8
 
@@ -34,9 +34,17 @@ CONFIG_CHECK="
 "
 
 pkg_pretend() {
-	if use kernel_linux && kernel_is lt 2 6 25; then
-		eerror "This version of KVM requires a host kernel of 2.6.25 or higher."
-	elif use kernel_linux; then
+	if use kernel_linux ; then
+		if kernel_is lt 2 6 25; then
+			eerror "This version of KVM requires a host kernel of 2.6.25 or higher."
+		fi
+		if use riscv && kernel_is lt 5 16; then
+			ewarn "RISC-V KVM official support landed in kernel 5.16,"
+			ewarn "and requires the hypervisor extension."
+			ewarn "Try out https://github.com/kvm-riscv/linux in qemu"
+			ewarn "if your kernel/hardware doesn't support it"
+		fi
+
 		if ! linux_config_exists; then
 			eerror "Unable to check your kernel for KVM support"
 		else
@@ -55,7 +63,7 @@ src_unpack() {
 }
 
 src_prepare() {
-	eapply_user
+	default
 	sed -e 's/^CFLAGS\t:=/CFLAGS := $(CFLAGS)/' \
 		-e 's/^LDFLAGS\t:=/LDFLAGS := $(LDFLAGS)/' -i Makefile
 }
@@ -66,6 +74,6 @@ src_compile() {
 
 src_install() {
 	dobin lkvm vm || die
-	dodoc COPYING README Documentation/virtio-console.txt || die
+	dodoc README Documentation/virtio-console.txt || die
 	doman Documentation/${PN}.1
 }
diff --git a/app-emulation/kvmtool/metadata.xml b/app-emulation/kvmtool/metadata.xml
new file mode 100644
index 0000000..115e9d6
--- /dev/null
+++ b/app-emulation/kvmtool/metadata.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<!-- maintainer-needed -->
+</pkgmetadata>
-- 
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