examples: add rump solo5 boot time

Signed-off-by: Hugo Lefeuvre <hugo.lefeuvre@manchester.ac.uk>

examples/rump-solo5-boottime/hello.patch

@@ -0,0 +1,22 @@
+diff --git a/tests/hello/hello.c b/tests/hello/hello.c
+index 03e36e0..f394e2b 100644
+--- a/tests/hello/hello.c
++++ b/tests/hello/hello.c
+@@ -9,9 +9,17 @@
+ # error compiler wrapper fail
+ #endif
+
++static inline void
++outb(uint16_t port, uint8_t value)
++{
++
++        __asm__ __volatile__("outb %0, %1" :: "a"(value), "d"(port));
++}
++
+ int
+ rumprun_test(int argc, char *argv[])
+ {
++	outb(200, 0);
+ 	char *world = getenv("WORLD");
+ 	time_t now;
+

examples/rump-solo5-boottime/rump-solo5-boottime.yaml

@@ -0,0 +1,47 @@
+params:
+  - name: TEST
+    type: string
+    only: ["Hello"]
+
+inputs:
+  - source: hello.patch
+    destination: /root/hello.patch
+  - source: solo5.patch
+    destination: /root/uhyve.patch
+  - source: /etc/resolv.conf
+    destination: /etc/resolv.conf
+  - source: /etc/environment
+    destination: /etc/environment
+
+outputs:
+  - path: /results.txt
+
+runs:
+  - name: run
+    image: hlefeuvre/rump-solo5
+    cores: 1
+    devices:
+      - /dev/kvm
+      - /dev/net/tun
+    capabilities:
+      - CAP_NET_ADMIN
+    cmd:
+      |
+      touch /results.txt
+
+      # patch solo5 to collect timestamps
+      cd /root/rumprun/solo5
+      git apply /root/solo5.patch --ignore-whitespace
+
+      # patch application to signal the end of the boot time (i/o port write)
+      cd /root/rumprun
+      git apply /root/hello.patch --ignore-whitespace
+
+      # rebuild
+      make
+      cd tests
+      . "/root/rumprun/./obj/config" && ./buildtests.sh -p solo5_hvt
+
+      # run it
+      script -c '. /root/rumprun/./obj/config && /root/rumprun/tests/runtests.sh hvt' -f /tmp/out
+      cat /tmp/out | grep "startup" >> /results.txt

examples/rump-solo5-boottime/solo5.patch

@@ -0,0 +1,74 @@
+diff --git a/tenders/hvt/hvt_kvm_x86_64.c b/tenders/hvt/hvt_kvm_x86_64.c
+index 4a5d148..06d70d2 100644
+--- a/tenders/hvt/hvt_kvm_x86_64.c
++++ b/tenders/hvt/hvt_kvm_x86_64.c
+@@ -37,6 +37,7 @@
+ #include "hvt.h"
+ #include "hvt_kvm.h"
+ #include "hvt_cpu_x86_64.h"
++#include <time.h>
+
+ void hvt_mem_size(size_t *mem_size) {
+     hvt_x86_mem_size(mem_size);
+@@ -146,11 +147,26 @@ void hvt_vcpu_init(struct hvt *hvt, hvt_gpa_t gpa_ep)
+     hvt->cpu_boot_info_base = X86_BOOT_INFO_BASE;
+ }
+
++struct timespec diff(struct timespec start, struct timespec end)
++{
++       struct timespec temp;
++       if ((end.tv_nsec-start.tv_nsec)<0) {
++               temp.tv_sec = end.tv_sec-start.tv_sec-1;
++               temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
++       } else {
++               temp.tv_sec = end.tv_sec-start.tv_sec;
++               temp.tv_nsec = end.tv_nsec-start.tv_nsec;
++       }
++       return temp;
++}
++
++struct timespec time1, time2, main_entry_time;
+ int hvt_vcpu_loop(struct hvt *hvt)
+ {
+     struct hvt_b *hvb = hvt->b;
+     int ret;
+
++    clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &time1);
+     while (1) {
+         ret = ioctl(hvb->vcpufd, KVM_RUN, NULL);
+         if (ret == -1 && errno == EINTR)
+@@ -178,6 +194,17 @@ int hvt_vcpu_loop(struct hvt *hvt)
+
+         switch (run->exit_reason) {
+         case KVM_EXIT_IO: {
++            if (run->io.port == 200) {
++                clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &time2);
++                errx(1, "solo5 startup: %lus, %luus (%lu ms)\n"
++                        "guest startup: %lus, %luus (%lu ms)\n",
++                        diff(main_entry_time, time1).tv_sec,
++                        diff(main_entry_time, time1).tv_nsec / 1000,
++                        diff(main_entry_time, time1).tv_nsec / 1000000,
++                        diff(time1, time2).tv_sec,
++                        diff(time1, time2).tv_nsec / 1000,
++                        diff(time1, time2).tv_nsec / 1000000);
++            }
+             if (run->io.direction != KVM_EXIT_IO_OUT
+                     || run->io.size != 4)
+                 errx(1, "Invalid guest port access: port=0x%x", run->io.port);
+diff --git a/tenders/hvt/hvt_main.c b/tenders/hvt/hvt_main.c
+index a815c3c..5c7f333 100644
+--- a/tenders/hvt/hvt_main.c
++++ b/tenders/hvt/hvt_main.c
+@@ -135,8 +135,12 @@ static void version(const char *prog)
+     exit(0);
+ }
+
++#include <time.h>
++struct timespec main_entry_time;
++
+ int main(int argc, char **argv)
+ {
++    clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &main_entry_time);
+     size_t mem_size = 0x20000000;
+     hvt_gpa_t gpa_ep, gpa_kend;
+     const char *prog;